I think for the bedroom or kitchen, you'd want one even smaller. Maybe something with the same Zotac ION board, but with an onboard DC-DC power supply so you can use a tiny miniITX case without a power supply.
Maybe something like this:
Just finishing up on this one, too. It streams 1080p from my Home Server @ around 13% CPU usage (not overclocked). Now
all I need is a 1080p Television.....