Quick little tidbit for you MS fans out there. Microsoft’s president for interactive entertainment business, Don Mattrick, reportedly announced at GameBeat 2012 that the upcomin Halo 4 will work with the new MS Surface tablet, although he didn't reveal any details as to exactly how this relationship will work.
Microsoft demonstarted their SmartGlass technology on tablets at E3 this year, so there's a possibility of connected supplemental content there. The USB port on the Surface tablets is ripe for controller inputs - could Halo 4 be playable on the go? [VentureBeat]