This sounds cool. I don't really watc h enough TV or listen to enough music to make a valid argument to get a "home entertainment PC" for myself, but it is intriguing nonetheless. Apple has a history of making stylish end-user systems that "just work" so it would be really neat if they could be the ones to produce a viable system that will be the living room's multimedia hub.
I guess I'll have to wait until January to see if this really comes to pass, and if so, how cool it really is.