Apparently there's some new console out in America today but at this point we're more interested in the news of a Rainbow Six Vegas multiplayer demo on Xbox Live.
It is indeed there, weighs in at 985MB and allows you to play in Attack and Defend and Terro Hunt modes. Attack and Defend involves a bomb in a casino, apparently, while Terro Hunt is a four-player co-op mode where you all work together to kill lots of terrorists.
It's available in all regions, happily, but you won't be able to download it to an Xbox Live Silver account until 24th November.
Incidentally, the full version of Rainbow Six Vegas is due out on 1st December alongside the PC version, and not on the 24th as previously planned.