Microsoft has been slower than Sony to jump on the 3D gaming bandwagon -- not surprising considering it isn't the one desperately pushing the televisions needed to experience them -- but today the company confirmed rumors that Halo: Combat Evolved Anniversary will be playable in 3D. Joystiq experienced a demo at Gamescom in Germany, and reports that it only works with the game's updated graphics mode, and that the game's producer claims the fr