Bungie announced Halo 3, the third and final game in the Halo Trilogy, slated to be released for Xbox 360 in 2007. Noting their sense of humour, Bungie declared Halo 3 the best kept secret ever.
The trailer is now available for download on the Xbox Live Marketplace, weighting 104,42 megs. Along with the trailer comes premium content, theme (150 points) and a gamerpicture pack (80 points). As imagined, the download process is tad slow at the moment. The synopsis that goes with the download gives us some insight:
With its defensive forces all but obliterated, Earth has fallen to the unstoppable might of the Covenant. These alien occupiers have discovered something beneath the ancient African sands – something incredible…something Forerunner.