I just got my iPhone 4S and the thing that immediately drew my attention was the fact that the home button doesn't "give" when it's pressed. I've got a 2nd generation iPod Touch, and when I press that home button it really goes down and gives a slight click. Whereas the one on my 4S doesn't seem to go down very deep, no click or anything. It's perfectly responsive though. The problem is actually that it's too responsive. For the short time I've had it in my pocket Siri started up like 3 or 4 times... Does anyone else have this too? I hope I've made myself sufficiently clear, if you have any questions please ask!