LOL Calm down, it's a gimmick. I don't understand why everyone's getting bent out of shape. I highly doubt the integration of the Surface is going to be a game changer. Probably just a way of tracking live stats and what not, kinda like a live scoreboard or something of the like, and if they integrate it a bit more, you'll be able to select your next "class" in multiplayer before you respawn with racing with the respawn countdown timer. Push it a bit further, and it'll provide live in-game radar.
Remember when they announced MASS EFFECT 3 had kinect support? People were saying the same thing as you, and look. It actually turned out great and nothing like the abomination people were describing.
Try it before you knock it. Speculation is usually garbage opinions.