I think the real reason behind the 3.0 OS will be that Apple is working on porting version to their netbook. After all it would be perfect to have app store for a 10" tablet. Think of how much better most of the games could get with an improved screen size and/or GFX.They would probably do something like universal binaries or multiple targets from Xcode.
For a netbook the iPhone OS makes a lot more sense than full on MacOS as it has much better support for touch and the UI is better suited as well.
For a netbook the iPhone OS makes a lot more sense than full on MacOS as it has much better support for touch and the UI is better suited as well.