It's out today. Looks pretty awesome, can't wait for the free PC version.
[youtube=560,345]nPuQKR24Qwk[/youtube]
A friend and I were talking - if they released a standalone version of Nazi Zombies for XBLA and PSN, would you buy it? If it were cheap enough I might, just to be able to boot up a quick game from the dash without putting the disc in.