I was thinking that when Apple is about to introduce new gestural navigations, they advertize and picked up by all news, blogs, and press releases heavily begore the products are in the store. Then the trial products are in the store, people can try and expereince it these new gestures. So that when the new phone is in you hand, you know how to do it. Tell your friends, family and colleagues. That what the new gestures have been indtorcued.