A few days ago my dual-boot Touchpad went blank. It was running and plugged into its charger at the time. It seems suddenly a lot of people are simultaneously having the same symptoms. I strongly suspect there is something going on that's bigger than the suggested 'low power' problem that's been offered.
If you have suddenly had your Touchpad stop working recently, please add a 'me-too' to this post, so we can get an idea of how many people are affected.
If you have been successful at recovering from this error, or have other solid info as to cause; please post to this forum so others may benefit.