That is so stupid. The capacitive buttons are the reason I'm staying away from Windows Phone 7. If the iPhone were to get one, I don't know what I would do, because I can't stand the Android interface.
Why do they need a home button at all ? Why can't they just add touch gestures in the iOS 5 that emulate it ? Steve Jobs once said he disliked buttons yet they're on every side of iDevices. What the hell ! I'm still waiting for a completely air-tight, water-proof iPod touch that has only a 3.5 mm headphone jack used for charging, USB connection and obviously, audio out.