All of the new features are just 'feature libraries' on top of CoreAnimation, which was there since 1.0. You could of made a demo of all of this that ran (slow

All of the new features are just 'feature libraries' on top of CoreAnimation, which was there since 1.0. You could of made a demo of all of this that ran (slower) on iOS 2.0 with just CoreAnimation and the accelerometer hardware API as a 3rd party developer. CoreAnimation is the impressive part.