According to this Game Informer magazine bungie is not working on any Halo 3 game. The retail stores put out that info about Halo 3 to get the hype up so they could sell well since they speculated one would be made.
In reality Bungie is working on a new game called Forerunner (which really, according to the magizine, might as well be called Halo 3). Wonder if Forerunner will continue the same plot as Halo 1 and 2 or if it'll be something completely different (though it looks like masterchief is still there but that might not mean much.. back when Bungie was a macintosh only company they made a game call Marathon and the hero in that game looked a lot like master chief).
so.. anyone else heard anything about this?