If the Kinect reveal for Halo: Combat Evolved Anniversary wasn't enough, 343 Industries also targeted fans with some new Halo Waypoint functionality at this weekend's Comic Con. The downloadable app is getting real-time GPS tracking of multiplayer games via a new service called "Atlas." Yes, seriously -- while you're playing a multiplayer game of Halo: Reach, you can use Waypoint's GPS feature via Windows Phone 7 or the web (and other "mobiles," we're told) to watch troop movements from above.

The updated version of Waypoint also adds the ability to send challenges to friends, similar to the weekly ones set originally via Bungie and now via 343 Industries within Reach multiplayer. 343 reps explained that you'll earn in-game credits for completing these challenges based on the difficulty of said tasks, but didn't dive too deeply into how it will all work exactly.

We'll find out soon enough, as the update to Waypoint launches alongside Halo Anniversary on November 15.

Update: We've added two Waypoint vids from Microsoft showcasing the update, one above and one after the break.

This article was originally published on Joystiq.