The big thing touted for Windows Phone 7 as the innovation over iPhone is hubs: information aggregated into one place and viewable at a glance. It seems to me that Apple could easily add such a feature to the home screen by letting you drag downward or upward to view a Dashboard like in Mac OS X that you can put widgets on that call out whatever information you care about—upcoming calendar events, missed calls, new messages, weather, whatever. They could do the same for the lock screen. If they do those things, I don’t think Windows Phone 7 would have any advantage over iPhone. Microsoft is taking a big bet that Apple won’t simply copy that one feature if it proves popular.