I have had my Droid since November 2009, it is not rooted and I am not running a task killer. I am only running 19 apps and have not added any in months. That said, last week 4 days in a row, the screen froze, three times when I pushed the power button to turn on the screen and once when I was ending a call. I did a battery pull each time and the phone worked again. I called customer service, they said it was the phone and sent me a refurbished one. The refurbished one had a defective power button, I could not activate it, so I called, sent it back and they are sending me another one. The phone has not froze again in a week. I am wondering if this was just something random with one of the apps and not sure I want to take the trouble to activate a refurbished phone that may have other problems. Any suggestions? Thank you.