XenGamers, which used to be called CoreMagazine, has put up a story on the Halo 2 announcement in New York and the trailer that we are now waiting 21 days for:

With Halo passing the two million mark in global sales, Microsoft unveiled the first in-game trailer for the much-anticipated sequel. The trailer starts off with the Master Chief, assisted by his AI construct Cortana, deep inside a spaceship. Arming himself with an assault rifle, he makes his way though the corridors of the ship, as mission objectives from the first game flash across the screen, each with a Completed after it. Upon entering the ship's hangar, huge Covenant ships can be seen invading Earth. Huge explosions burst across the continents. A new mission objective hits the screen: Stop the destruction of the human race and Master Chief opens the hangar door and jumps into space, heading directly for a hovering Covenant craft below. The trailer showcased new graphic enhancements that Bungie's managed to get out of Xbox, including realistic real-time lighting effects, more fluid animation and more realistic bump mapping. In addition to featuring online play through Xbox Live, the sequel will offer a larger assortment of weapons and twice as many vehicles.

The story also covers the Xbox Live announcement.