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It's a busy day for discussions of new mobile technology here in Silicon Valley - from applications of location based services to semiconductors.

At 3:30 this afternoon, I'll be heading up to Palo Alto for the Wireless Communication Alliance's LBS SIG presentation of Locationpolooza! The event is described as an opportunity for the "best and brightest" location applications to show why users should be excited about downloading them. 

I have not used any of these apps myself, so I'll be interested to hear about the offerings from these presenters:

  1. Skout -using location information to help find other nearby "singles" for flirting, chatting and potential dates. (In case my wife is reading.. I won't be using this one myself ;-)
  2. Geodelic - looks like a personalized Yelp, combining location information with a personal preference profile to filter searches of nearby places of interest.
  3. MotiveCast - the website shows a company in stealth mode, but I did find a YouTube video that said something about "motivating purchase behavior". There is also an online job listing for an Android developer to work on "the intersection of mobile gaming and augmented reality"
  4.  CiviGuard – a platform for crisis communications, targeted at local government emergency management agencies.
  5. ZOS – a platform to create an "industry standard for communicating location information in the Location-Based Service (LBS) ecosystem".
From the WCA meeting, I'll immediately be going to the Santa Clara Valley IEEE Consumer Electronics Society meeting on Serial Port Memory Technology (SPMT). SPMT is a "new memory interface standard for mobile and consumer electronics devices".  The technology is being developed by a consortium of companies, including ARM, Hynix, LG, Marvell, Samsung, and Silicon Image. SPMT is intended to address the need for higher bandwidth, low power memory. This was one of the challenges described by Greg Delagi, Senior VP at Texas Instrument, during his keynote at the International Solid State Circuits Conference earlier this year.

It should be an interesting set of discussions. Watch this space for a follow-up report.


In a blog post earlier this week, I shared the story of my very first introduction to electronics - way back when I was maybe eight or nine years old.  I had been referring to that distant memory in my sidebar bio here on The World is Analog from the beginning, since the project that my Dad helped me build back then - a "foxhole radio" - was the spark that fired my interest in the technology that I still enjoy so much today.

By inspiring me while I was such a young boy, my Dad unknowingly paved the way to a career that quite literally changed my life. From the Rust Belt to Silicon Valley. What a great trip it's been! That 1st project, along with all the Gilbert Scientific kits and construction sets, were gifts that kept on giving.

I ended that blog post on "Antennas at War", with this postscript:

p.s. if you happen to come across an original edition of All About Radio and Television, you can imagine how much I'd love to put my hands on one.
Well..my awesome wife apparently read that. I was left speechless today when the book by Jack Gould somehow appeared on my desk. "Honey, could you show me something on your computer?", she said. And there it was, like a time machine taking me back to that day in the cottage where I lived as a kid... at 15 1⁄2 Garner Ave. in Buffalo NY.

I couldn't wait to find the chapter on the foxhole radio. What a strange feeling it was to realize that this was exactly the set of instructions we followed, each image recalling a vivid memory from the past. 

It was a great gift then, and an awesome gift now! Thanks to my Dad, and thanks to my lovely wife.

Recent market share gains for Android smartphones have been well publicized, as devices based on Google's mobile OS now challenge for 3rd place behind RIM's Blackberry and Apple's iPhones.  At the same time, less well known (outside the techie community) is that another operating system for mobile devices is about to emerge from Google's development Labs - the Chrome OS.

  • Like Android, Google is developing Chrome as an "open source" project.
  • Also, like Android, Google is promoting an app store model for Chrome.
  • Unlike Android, Chrome is targeted not at smartphones but at netbooks (and tablets?).
  • Also, unlike Android, Chrome's apps are hosted on the web, i.e. "in the cloud" through the Chrome browser.
  • Android apps = Java
  • Chrome apps = HTML5
Now the Chrome browser might be familiar to many of you, since it also has achieved a 3rd place position (passing Safari), but what is the purpose of another OS?

And, how will Chrome impact mobile computing?
Oh, and what's with another app store?

I had the opportunity to discuss some of these questions with two members of Google's Chrome development team at a Silicon Valley Meetup earlier this week.  It was clear, from the lively discussions at the meeting, that the developer community is also unclear on how the dual efforts on Android and Chrome fit together in the grand scheme of things. 

You can watch a video on the Chrome Web Store concept from Google I/O, but here are what I see as the key assumptions in Google's thinking:
  • Tabbed browsing has led to clutter, "why have multiple tabs for the same site"?
  • There is "no inherent discoverability on the web".
  • Too many sites ask for permission, and this will get worse with HTML5 features.
  • The taxonomy of the web will develop into two branches: rich media HTML5 "applications", and more standard web "pages".
  • It is hard for developers to monetize these applications on the web. 
Tab clutter is a subjective issue. I myself apparently abuse browsers well past their capacity, as evidenced by frequent crashes or freezing up of my PC. But I like having separate tabs.

On discoverability, I'm not sure that Technorati, digg, StumbleUpon, or a number of other social website sharing services would quite agree. Google is going up against Facebook on this issue.

Regarding monetization, Google's Chrome Web Apps do provide a benefit over the mobile app store model. Developers will get 100% of the revenue.
    Since the Chrome browser runs on multiple platforms, the Chrome Web Store will also facilitate access to web apps that can be run on PCs, Macs, etc. However, underlying Google's strategy are the advantages envisioned for cloud computing, especially for mobile devices.
    • Google Chrome OS will make your netbook more secure, even disposable. You don't have to worry about it being lost or stolen, since there won't be any data or applications stored on it.
    • Faster boot times, since Chrome OS requires a solid-state drive.
    • Cheaper computers, i.e. no OS "tax". Just like Android, the Chrome OS will be free.
    Developers in attendance had many questions, many no doubt influenced by the current Android fragmentation issues, that the Chrome strategy appears to repeat if not exacerbate.

    I was asked about Chrome versus Android during my presentation at the Netbook Summit back in May.  As you can see in that presentation, there are already Android netbooks on the market, though not so much in the U.S. as in other regions of the world. Many Android tablets are in development as well.  My answer then was that I could envision a convergence, offering a choice of browser-based vs. native apps. While the distinctions between Android and Chrome appear to be (excuse the pun) a bit cloudy, in my discussion this week with the Google representatives it was made clear that Google sees the two OS development efforts as "completely orthogonal".

    While a technically sound argument might be made for that, the issue I have is that success in the consumer market - which this effort targets - is very dependent on making the user's life simple. While Google's culture of experimentation is a great one for driving innovation, as we saw with the Nexus-1, "build it and they will come" is not a prescription for market success. As an engineer turned marketer myself, I have seen this many times.

    I wonder if Google has run any focus groups on prototype Chrome devices? Understanding the end-consumer is a key differentiating strength that Apple possesses.  It's all too common in engineering-driven organizations to take the approach of "who needs marketing"?

    Here are some issues that I see, and some thoughts on why a converged Android-Chrome strategy should be considered:
    • The Chrome Web App store is based on Google Checkout, which has been a limiting factor in deriving revenue from Android apps. Relatively few people have Google Checkout accounts, and many people don't want to register on another pay site. The Chrome App solution is to redirect to the application's host site for alternate payment mechanisms, such as PayPal. A user should be able to register their own preferred payment mechanism once on the market site.
    • As was announced at Google I/O, the Android Market is finally going to get desktop browsing capability. Why not make one unified Google Market? The Android Market already knows everything about my device when I login, and I fail to see the benefit of creating multiple shopping sites. Since web sites can be turned into a Chrome Web App, will we see Android Market apps in the Chrome Web App store? Confusing!
    • This will get worse with the introduction of Google-TV and a growing number of non-smartphone applications for Android.
    • Or maybe better yet, why not hand off the whole app store to a 3rd party that has more consumer-facing expertise and brand identity (e.g. Amazon)? 
    • While the Android browser is, currently at least, not Chrome - wouldn't it make sense to give Android devices the same access and user experience for Web apps? This is going to be critical to the success of Android tablets, especially with Google's emphasis on HTML5 rich media applications.

    Here is the planned rollout schedule for Chrome Web Apps:
    • mid-August: developer-facing launch.
    • October: consumer-facing launch. Sellers in U.S only at launch, in USD 
    • Other countries and currencies to be added later.
    Stay tuned. Innovation never sleeps!
    No not THAT antenna!

    If you've read the little blurb in the sidebar of my blog, you know that the first electronics project I ever worked on was a radio that my father helped me build when I was about 8 years old. As I recall it, there was a book on electronics for boys (ok - they were sexist back then) that had the project in it. The radio was based on building an antenna from a coil of wire wound around a cardboard toilet paper tube.

    Now, before you assume that I am making some sarcastic allusions to another antenna story that's been all over the news recently... I assure you that is not why I write this today.  (Although I have to admit that more iPhone-4 jokes do come to mind).

    Here's the story.


    I was looking for some wire to use in order to hang yellow jacket traps today, when I recalled that I had a spool that's been in my toolbox as long as I can remember. I've used this wire for similar purposes many times in the past, although never (that I can remember) for its intended electrical application.

    Except for one time.

    Suddenly it struck me. This was the very same wire that my Dad bought for the antenna coil in that radio project so many years ago.  I don't know why it never really struck me so vividly before today (faulty memory). My wife likes to tease me about holding on to things, but this has to be some sort of record for me. With my memory jogged I can even see my Dad taking me to the electronics parts store on Vulcan Street in Buffalo. I looked it up, and I think it's still there... Radio Equipment Corp.!  How cool is that?!


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    So, I had to do a web search to see if I could find that book. I physically looked for the book a few years ago shortly after my Dad died. I had the somber task of closing up my Dad's house when it was severely damaged after a burst water pipe went undetected in the middle of winter. Regrettably, the book was not to be found.

    However, Google did find something that looked just like the image in my now rejuvenated memory, the "foxhole radio". According to my internet search, the origin of my first electronics project (and 1st experience in the world is analog) was "How to Build a 'Foxhole Radio' ", from All About Radio and Television by Jack Gould, Random House, 1958.

    That's a little bit different than my memory of a book on electronics for boys, but it could make sense because my Dad did some part time TV repair when I was growing up. Google books also came up with a reference to a guide to books for school libraries, so maybe my memory is correct as well. Perhaps the article was copied in other forms.

    As the story goes according to my internet search, soldiers in WWII were not allowed to have radios, for fear of detection by the enemy. So they improvised with this simple - unpowered - design. I may just have to go see if I can re-create one now.

    In any event, I thought this was a great way to cap off the week that brought us "Antennagate". It also serves as a great reminder. Yes, The World is Analog!

    p.s. if you happen to come across an original edition of All About Radio and Television, you can imagine how much I'd love to put my hands on one.
    With all the ongoing controversy regarding the iPhone-4 antenna design flaw (yes, that's what it is), not to mention the absurd PR disaster, some pundits have blithely suggested that it's much ado about nothing... customers must be happy or they would just return the phone.

    After reading this morning's San Jose Mercury News, I was struck by the thought myself.. "why don't customers just return the iPhone-4"? According to the story by John Boudreau...
    The antenna problem is upsetting iPhone 4 owners like Ceci, a 40-year-old nurse from San Jose who would give only her first name when approached at the Apple Store at Valley Fair mall. She said she has had reception problems with her new iPhone and that if she weren't already locked into a contract with AT&T, she would buy some other smartphone.
    Since the iPhone-4 was released less than 30 days ago, couldn't Ceci just return it for another AT&T smartphone.. like say the HTC Aria? Is she confused about being "locked in"?

    I think cell phone contracts are very confusing, so I decided to check out what would happen if I wanted to return a new iPhone-4. I had a little chat with one of AT&Ts online customer support agents.

    Here's how that conversation went.
    Chat Information> You are now chatting with 'Kelly'
    Kelly: Welcome to AT&T Premier online sales. How may I assist you with placing your order today?
    Mike: Hi.. I just have a question regarding return/exchange policy on a new iPhone-4.
    Kelly: I will be happy to help you with this. What can I do for you?
    Mike: with all the problems people are talking about.. if I get an iPhone-4 and want to return/exchange.. what is the policy?
    Kelly: For the 30-day, risk-free trial, if you are not completely satisfied you can return your undamaged phone for a refund in the first 30-days and pay only for airtime and usage charges; prorated monthly service charges apply.
    Mike: I see.. and then I could switch to another smartphone.. like the HTC Aria, at no extra charge?
    Kelly: There would be a restocking fee, and if there is a price difference you would have to pay that but there would not be a second activation fee.
    Mike: and what happens after 30 days?
    Kelly: Then you are bound to the service agreement.
    Mike: ok.. so with the 30-day risk-free trial.. I would be better off canceling my AT&T service altogether?
    Kelly: Do you mean if you don't like the phone?
    Mike: Yes, assuming I got a new iPhone-4 and wanted to return it within 30 days.. I have to pay restocking fee to switch but nothing if I quit?
    Kelly: Correct. You just walk away if you are completely displeased with us.
    Mike: Does that seem odd to you? I need to pay to stay?
    Kelly: For the restocking fee you mean?
    Mike: Yes
    Kelly: I wish that could be waived but it is policy that I have no control over.
    Mike: OK, thank you very much for explaining your policy.
    Kelly: I'm sorry that I can't waive that. I had to pay it myself. But I love the coverage and the phones we have!
    Mike: Great! You have been very helpful. Thanks.
    Kelly: Can I do any more for you today?
    Mike: That answers all my questions. I appreciate your help.
    Kelly: It was my pleasure.
    Kelly: Thank you for choosing AT&T! We appreciate your business.
    OK, so a new AT&T customer could just switch to Verizon if they are not happy within the 1st 30 days of their contract. But it could be that, with all the legalese in these contracts,  consumers are intimidated by these 2-year commitments.

    Then there is the issue of bundled discounts. How many consumers are taking advantage of 2-way home/mobile phone service discounts, or 3-way home/mobile/TV (as my wife and I have)?  This can create further disincentive to switch.  Would AT&T really rather have customers leave their service altogether than provide a free exchange?

    It will be very interesting to see if this comes up at the Apple press conference on Friday.
    In Part 1 of my report from the WiMAX Developer's Symposium at Stanford, I reviewed the opening presentations from Clearwire and Sprint, the two companies that are currently rolling out a nationwide WiMAX network in the U.S. In this post I will review some of the presentations from the Applications Showcase, where  entrepreneurs (and some established companies) described how they could take advantage of the increased capacity and speed of a 4G network.  I found that a number of the presentations were not particularly 4G-oriented, so I will highlight a few of the applications that in my opinion best-fit the theme.

    Triage-4G
    It should be no surprise that video applications are generally expected to drive demand for 4G wireless services. I predicted as much in my report on The Emerging 4G Wireless Landscape in the U.S., in which I showed how the higher capacity required to meet consumer demand was creating a disruptive event in the industry... one that Sprint/Clearwire was well positioned to exploit over the next two years.

    The WiMAX Applications Showcase at Stanford demonstrated how the use of mobile video in non-consumer market segments also presents many new opportunities. In recent years the wireless industry has increased their focus on mobile health (or telemedicine), which was the topic of this presentation on Crisis Telediagnosis - Emergency Response.

    The idea in this presentation was to build an application that can link first responders on emergency calls with a network of remote medical specialists, to aid in "on the spot" triage.  The first responder would use text tags transmitted via SMS to a server to describe a patient's condition, so that an appropriate physician could be notified. The physician would then log into the system to access a live video feed to continue the diagnosis with their own eyes.

    I'm far from a medical expert, but I'm skeptical on how much value a physician can add to a trained paramedic in such instances. In a true emergency time is of the essence, and I am guessing that video would not necessarily be as valuable as a live streaming data feed from wireless medical instrumentation. Also, liability and insurance issues being what they are, I suspect this would only be practical between emergency teams affiliated with local hospitals.

    Embedding diagnostic medical instruments in mobile devices is an actively growing field. Industry collaborations such as the West  Wireless Health Institute, which includes Qualcomm, GE and Cisco amongst its sponsors, are working on developing new innovations in this area.

    4G Video Surveillance
    This presentation of using video over WiMAX comes not from a startup or a student project, but from the Moog Videolarm company that has been in business since 1976. The company, which is headquartered in Atlanta, has installed 200 of their Liberty Series 3G/4G cameras in a city-wide network there. I have to say that it felt a little creepy to be watching unsuspecting pedestrians on the streets of Atlanta while sitting in an auditorium at Stanford - 2500 miles away.

    The Liberty Dome provides a built-in modem for the Sprint-Clearwire network, enabling (secure) IP connections for H264-compression cameras. (We were told that the streaming video we were watching was only accessible with a password for that IP address).

    Besides the obvious privacy concerns, the point that struck me was that the cameras use an upload stream that consumes 500Kbps of data 24-7. I wished that the scene in Atlanta had included some citizen walking into the scene with a new HTC EVO 4G smartphone, to see what effect it would have. The Clear WiMAX service is currently capped at a maximum of 1Mbps in the upload direction, and in my experience with the service in Las Vegas, each camera is equivalent to the average data rate that I achieved.

    In the earlier presentation from Sprint, the theoretical capacity of each WiMAX tower was spec'ed at 420Mbps. This assumes the (unrealistic) availability of the entire 150MHz of spectrum at an individual base station. So let's divide by 5, since Clearwire uses 3X10Mhz deployments currently. That gives us a maximum capacity of 84Mbps per tower. Now divide that by 3, to get a capacity per sector of 28Mbps.

    Finally, divide by 4 because the TDD spectrum is allocated in a 3:1 download:upload ratio. The result, by my calculations, is an upload capacity in an individual sector of only 7Mbps.

    Forget privacy for the moment. The question then is: How many surveillance cameras per sector? And.. what effect do they have on the consumer experience?



    Geogad - using social media for travel guides
    Geogad is described as "Your own personal mobile tour guide". The name Geogad is explained as:
    A combination of two words, geo, which means Earth or world, and gad, which means to roam or wander.
    Geogad allows users to build a customized tour of their destination by downloading audio-video recordings that describe a desired set of stops. The videos I sampled were slide shows, but one can imagine more rich content in the future as befits a 4G application. The tour can be run on a smartphone, and Geogad has released an Android application for this purpose.

    The tours can be from amateur travelers or professionals, and that's where the social aspect comes in. Users can also upload their own favorite tour stops to share with other users. It's sort of like a multimedia version of FourSquare or Yelp, but the idea of mixing & matching a set of tour stops is a novel one. Geogad was awarded one of the awards for best app at the Symposium.
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