The SteamBox countdown page just expired!
Last week Valve put up a countdown page
about "the Steam universe expanding" next year and the countdown timer just exhausted itself so the details should be up over at SteamPowered.com
(this story was written in advance to remind people about the page as I have prior engagements at the time).
At LinuxCon in New Orleans, Gabe Newell had first mentioned more SteamBox details would be coming
I'll have up my write-up on today's news soon as finishing up my Augustiner tonight during Phoronix @ Oktoberfest