Microsoft's Big Announcements?

Apparently Microsoft will be announcing 2 huge things in the next 2 days. Could they be Halo 3 related? Or Gears Of War Related? Or The new Black 360 Related?
Just please don;t be the Xbox version of Mii's...

Halo 3 - 3 Is The Magic Number... Of Things You Can Buy

Yes, It's getting much closer to Halo 3 time. And Bungie, the company making Halo, has really outdone themselves. Not only can you buy the standard game($60), but you can get the Limited edition($70)! Oh, did I also mention there is a Legendary Version($130)? The picture above shows that you will receive the game, 2 bonus DVDs, and the special Spartan Helmet Game Holder. Halo fanboys rejoice! Oh hold on, you can't wear it. Halo fanboys... cry...