Halo Wars for Xbox 360.
Microsoft announced a X06 today that there will be Halo Wars, a Real-Time Strategy game set in the Halo universe, coming for the Xbox 360 sometime in the next year or so hopefully (no launch date has been given yet). The trailer for it they showed looked great. You can get the trailer and more info over at GameSpot. This is a really big deal. If done right, Halo Wars could bring a whole new batch of gamers to the Halo franchise. I just hope they decide to do a PC version.