I just had the following experience with my Droid and was wondering if this is a known issue. I answered a phone call that lasted about 20 minutes. During the conversation I noticed that the accelerometer behavior was not supposed to be working as it should...i.e. the screen did not light up when I moved the phone away fro my ear. Pressing the power button or any of the home keys did not bring up screen. When the call was completed (disconnected by the person at the other end of the line) the screen continued to remain blank and did not respond to key presses. I had to remove the battery and reinsert it to get the screen to work again. Should I exchange my device?