Android + Splashtop Gamepad THD
An awesome combination, and a good use for an Android laptop. The only problem I've had on the Transformer Prime is the Splashtop app currently refusing to send apostrophes and sending hash symbols instead, but for games and video playing that's a minor issue.
You get all of your tabletty phone-like fun from the Play Store. Meanwhile, videos and games and anything else from your home PC can be served via a streaming video link that's a hell of a lot more reliable than VNC or RDP for this kind of purpose.
It's sort of like having your own OnLive server, and the streamer is available for WIndows, Mac and Linux.