Gamespot reports on the airing of the Halo 3 Teaser trailer on Monday Night Football, and the beginning of signups for the Halo 3 beta at Halo3.com. From the article: "[Yesterday] registration for the beta program began at the Halo 3 Web site. The beta will initially be open to North American gamers, and not everyone who applies is guaranteed a spot. To participate, gamers must have: a) An Xbox 360 with a hard-drive; b) A valid Xbox Live Gold subscription; c) A valid Microsoft. NET Passport account with a Xbox Live GamerTag linked to it." The teaser featured a mix of live-action and very impressive CG. It just didn't grab me in the same way that the trailer from E3 did, though. If you're interested in some more substantive information on the game, the folks at Ziff have been offering up information via the 1up Show.