The number take-away from this for me is wow, Apple wields an awesome power. They move to change design conventions, and boom! - a worldwide ecosystem of designers and developers scramble to retrofit every aspect of their complex applications to match the changes. Microsoft could only dream of having that power. I've been on Windows Phone for over a year now and at this point in time they seem years away from even having anything resembling this sort of following. The difference of course is that one phone feels exciting and dynamic to own, and the other feels completely and utterly barren.