A person named Bas from cs.rin.ru is willing to emulate IWNet servers to fool Modern Warfare 2 that it's actually connecting to IW.
To do that, he will see how the game works while connecting to IWNet and what it expects to see. Now, if he's successful, we can run our own IWNet with matchmaking. For now, I don't know how he'll do the invite system, but if it doesn't work, probably dedicated servers will replace IWNet emulation, just like in the TeknoGods loader.
That's it for now, please refrain from spamming this thread with your Steam IDs, Hamachi networks or otherwise useless comments.