except this may not be either useful or disruptive. Perhaps Apple relegated it to a gimmick because they knew that tying something as fundamental as navigation to it would not work. Just think of all of the people who claimed they got sick from or were simply terribly annoyed by all of the motion in iOS7. Now imagine that this motion is the foundation of your device. Does not sound useful or disruptive to me.
I think Apple's face is blissfully smack-free after this particular announcement
I think Apple's face is blissfully smack-free after this particular announcement