Can I set a tablet to wake up when moved or when I touch the screen?

I intend to buy a an Android tablet for a single use, as a remote control. It'll run a single app all the time and sit in a dock most of the time, occasionally being carried to another room. I want two features: stay awake while charging (searching this site showed me a few app solutions for this), and for the tablet to wake up when moved or when the screen is touched. Basically, I want as little time and as few manipulations as possible to get from just lying there on a coffee table to being awake and responsive. I expect this will decrease battery life (because the touch detection or accelerometers have to be active), and given my use case, that's ok as long as I still get 3-4 hours out of it. I don't have a specific tablet picked out yet, but I'm thinking something along the lines of the Galaxy Tab 8.9". The 7" screen size would be fine, but I want to us this in landscape mode all of the time and that works better if the dock connector is on the bottom while in landscape mode.