Preorders for Shattered Horizon are up, £15 or £13.50 if you preorder and preorders get early access to all new maps that are already planned and promised.
You see, this is the reason why you can't just shit on the PC community and expect to still get the sales like Activision believe they can. A multiplayer shooter with a much more interesting concept, which is much more innovative, with dedicated server support, free maps on the way, and much better graphics costs just over a1/3 of what MW2 does, and they're even offering a preorder discount (and goodies) on top of that.
The fact that Killing Floor (a game with a similar sort of value) just outsold MW2 more than 4:1 on MW2's preorder launch weekend.