http://www.fpsadmin.com/forum/showthread.php?t=18871Came across this huge list of questions people had sent in regarding mw2, with most of them being answered by devs. i didnt make it all the way through, but some of the highligts i found were:
PC's matches player count max out at 9vs9
Player stats and profiles are stored over steam, so you can reformat or play from a different computer with ease
No lean on pc
friends list is steam's
lots of other stuff probably, anyone else find something worth posting?