In a weekly update that was almost uncharacteristically chock-full of real information, including an update on Halo 3's current control scheme, button-by-button, one last morsel was hidden in plain sight, in the desktop wallpaper "teaser image" that features the Halo 3 logo above the glowing Forerunner artifact from the announcement trailer.

Even the Mister Chief version that accompanies the article features the text so obvious that you might have missed it: Fall 2007. Given that Halo 1 was released in November, and Halo 2 was released in November-- was there ever really any doubt?