I just finished watching the Microsoft press conference. Microsoft showed amazing gameplay of Halo 4. Master Chief will be using Forerunner guns and apparently Cortana has turned evil... That's a big surprise!
The best demo was the one of the new Splinter Cell. The whole killing in motion thing looked really cool. The biggest announcements were not game related. A music service, a fitness game by Nike, new video channels and tools to make your iPhone or iPad communicate with the Xbox.
Those were pretty much the high points of the presentation. Even though games like Forza Horizon and Halo 4 are very cool, it's a pity there were no other big surprises. Hopefully Sony and Nintendo have more surprises in store.