I think people outside the gaming industry are missing a very important simple point. It is easier to design and code for a game that you have standards for. 360 and ps3 are set hardware, you can design and tweak everything around them, where as in pc, you have to support a range of features,and configurations, and drivers. It is more work, for less return. But for porting it, the amount of modifaction to a tree, to make it work for pc, once the console branch is done and profitable is worth while, because as a company you have spent your r&d, and development budget, even if you only sell 30k on pc, and have 120k stolen, your going to come out way ahead. And a solution is a steam like platform, which is pretty hard , or more work than its worth to bypass, for multiplayer that is.