Coming out in August '09, this is an interesting idea from Asus.
Everything is self contained under the keyboard and the whole thing weighs 2 pounds. The only problem I see is the measly 5 inch touch screen on the right of the keyboard. Of course, it can be hooked up to any monitor or the TV and it comes either wireless or wired and can run Windows. It comes with a microphone and a set of speakers and will probably cost about $400. Might be a good way to marry your PC and TV and do emails during commercials.