Well, I've had my 7 for about three weeks now and today I turned the screen off and she won't come back on. While reading some comics on it I noticed it was getting rather warm so I hit the power button to kill the screen and she won't come back on. I know it should have plenty of juice as it hadn't been off the charger an hour at absolute most. I've put it on the charger for a few seconds but got no response and I've healed the pow error button for about thirty seconds without a response also. Looks like I'll be getting in touch with Google tomorrow.