Just curious if anyone is having this problem while on the phone. I have had this happen to me twice and I have to take the battery out to get it unlocked. It seems to happen when I'm on the phone for a long period of time. The screen will stay black, never come back and the lower buttons, (home, etc.) will be all lit up. So, I can't hang up etc without taking the battery out. The power button does not work either even if I hold it down for awhile. I do have open home on the droid which could be causing a problem, but I don't know.