iPhone 3.0 beta 2
The updated iPhone software is said to improve stability, add push notification and improve some of the “sluggishness” of the first release [via macrumors].
I believe I’m going to wait for another release or two before diving off that board again. Since playing with 3.0 the first time, my iPhone has behaved a bit strange (3G does not always find the network and I need to reboot or turn on/off airplane mode).
I’m still not sure why Apple has made it so hard to go from 3.0 back to a 2.2.x version (they still state you CANNOT revert back to 2.x after upgrading to 3.x). Maybe they will change that for developers too…