[UPDATE 2] Bad news for those waiting for Modern Warfare 2 for the PC! By the looks of it, it has been delayed a full 2 weeks...
[UPDATE] As it's not directly confirmed by Activision-Blizzard, let's hope for the best and think of this as unconfirmed news.
[UPDATE 2] Thanks to @WePlayCoD ยป it has now been unofficially confirmed by an Activision representative...
Its not going to be waited on...