On a semi-related topic, is it really possible for an app to properly replace the Android lockscreen? I haven't found any way to do it. As far as I can tell, all the "lock screen" apps use a hack where they disable the stock lock screen and then emulate a lock screen by asking you to make the lockscreen app your default home screen and then launching your "real" home screen when you "unlock" them. I've seen it said that they do this because it isn't truly possible to replace the lock screen. The problem is, of course, that this hack sometimes doesn't work or produces weird results often enough to discourage me from using any custom lock screen.