Both of these are just dumb. The first one explains why Apple is going for non-replaceable batteries in EVERYTHING. To keep the owner out and make reasons not to honour AppleCare.
The second one is probably just to cover themselves if someone else comes up with a practical use for shake navigation. Clearly this isn't practical, but they probably want to own the concept of using the accelerometer for the interface.
The second one is probably just to cover themselves if someone else comes up with a practical use for shake navigation. Clearly this isn't practical, but they probably want to own the concept of using the accelerometer for the interface.