HAHAHA omg sorry guys, but i was just browsing the faithful Infinity ward website when i came across this article.
Cheat / Hack Free Games: The biggest benefit of using IWnet by far is the fact that you don’t have to worry about joining a server full of aim-bots, wallhacks, or cheaters. Or relying on the server admin of the server to constantly be monitoring, banning, and policing it. Modern Warfare 2 on PC allows us to control the quality of the game much more than ever before as well as utilizing the VAC (Valve-Anti-Cheat) system to keep games clean of hackers and cheaters.
The rest of the article is at www. infinityward .com/ news.php?id=3
Maybe people could post some hilarious fails by infinity ward below