Since plugging in the charger at night reboots the Droid, my Droid is always booted and working. With pre 2.2 versions, I could decrease the volume control at night until I saw the "X". This meant that no sound or vibration would occur. I don't want to hear my phone ring or vibrate at night. Normally during the day I keep the phone on vibrate.
With 2.2 this is not possible unless you go into settings and sound and set "vibrate" to "Never" each night. It would have to be reset to Vibrate in "Only in Silent mode" again each morning.
I checked with Motorola last night, and the service rep had a 2.2 Droid as well as a 2.1 Droid and she confirmed this.
I think this problem was overlooked in the upgrade.