What's "Mobile Ops?" The full title sounds like Gundam.
It's basically what distantmantra said, it's a gundam game but you can play in gundams, on foot with a rocket launchers, and probably with other things. the graphics they showed looked good (last time they showed it was about a year ago) and it looked a lot better than the PS3 gundam at the time because of the lighting, shadowing, and lush jungles.
most likely it's canceled if they haven't said anything about it, I think I heard it was supposed to come out last spring though.
there's too many games to list. some that I can remember are Halo 3, mass effect, HL2: orange box, PGR4, VF5, maybe Skate, maybe DMC4, and a bunch of rentals.