I blame the iPhone for what is possibly the single dumbest thing in the history of gadgetdom...
SLIDE TO UNLOCK
I have an app to destroy this abomination in my Android phone. (Stock, not rooted)
Please tell me that somebody's done one for iOS.
Note: don't want to jailbreak, as I really don't know all the ups and downs of it, plus I don't feel like having to re-do everything any time a new rev comes out.