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Addendum

I had an extra idea for the location stuff. Bluetooth is fairly localised, much more so than wifi. So bluetooth could be used for setting fairly small location areas inside buildings, where GPS would not work and where wifi would be too large.
This could be used for a variety of applications, such as [...]

Location aware

One of the features of the new iPhone is its built in GPS. In a way, the existing iPhone is location aware in that it can get a rough idea of its location by triangulating against local cell transceivers, known wifi access points etc. The new one adds to this with the GPS. [...]

iPhone 3G

Okay, I admit it. I’m a sad Apple wenie. I watched the various web feeds of the WWDC keynote on Monday (evening for me). I even found someone who was streaming the audio from an Apple macbook so I could actually hear The Words of Santa Jobs as he spoke them. [...]