We still see a significant difference between iPhone and iPod touch users upgrades, which isn’t surprising given the $5 upgrade requirement for the iPod touch.  91% of iPhone requests are 3.0 or 3.1, compared to only 35% of iPod touch requests

via AdMob Metrics blog.

via 9to5 Mac

I’m just imagining flicking all sorts of things around the office: memo to Boss – BAM!; file to printer – BAM!; etc etc – BAM!

with QuadCamera

Notable about the video, and others, is the emphasis on the corporeal identity – face recognition, real-time video of people – seems to continue the anchorage of online identities to literal pictorial and video evidence. Facebook is a good example of this.

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Elsewhere in AR TwittARound “shows live tweets around your location on the horizon“. I found his summary of technologies used illuminating:

The whole application is developed in Webkit (UIWebView / Safari Mobile). A native Cocoa wrapper delegates location, compass and accelerometer to Javascript in the UIWebView. The 3D scene is based on Safari Mobiles brilliant 3D CSS transforms. The Ajax part is done with jQuery. After writing some native iPhone apps this Webkit approach seems to be ideal for rapid development of applications independent of the iPhone UI.

This setup is related to the non-availability of public APIs for live video on the iPhone, meaning developers can’t publish via the app store:

But here is the rub: we are currently unable to publish these apps on the app store because the iPhone SDK lacks public APIs for manipulating live video.

In early July, a number of developers and academics write the above in their Open Letter to Apple: Let us Augment Reality with the iPhone!. It will be interesting to see what Apple’s plans are in this space.