I hadn't charged my Droid in two days (yep, still working with GPS and WiFi on), so I thought I'd see how the phone alerted me that the battery was almost dead. When the LED began to flash red, the screen lighted up showing the lock screen with a notification that the battery has less than 10% charge remaining. However, the screen would not turn off. It stayed illuminated, even after I (briefly) pushed the power button. If I had wanted to preserve battery power, my only choice was to completely power off the phone. This is the only situation I've encountered when the screen doesn't shut off after a period of inactivity. Also the only instance when it doesn't shut off when the power button is pressed. And it's probably the only situation where one would want these actions to occur to prevent faster battery drainage. What have others noticed when their battery is dying?