" Thats Activision's, not Valve's, decision. Activision will always try to sell you another copy than just give it away. "

Thats Activision's, not Valve's, decision. Activision will always try to sell you another copy than just give it away.

I really doubt Activision is going to release COD4 on steamplay when they sell it on the Mac App store for like 50$. 

I am currently running Windows 7 on a recent MacBook Pro through Bootcamp. I purchased Cod4 last night and was able to play online without a problem. When I started playing single player, I received a blue screen during the second mission cutscene. Now when I boot up Windows 7, I immediately receive a blue screen.

I would very much be in favor of Steam incorporating Mac support for this game as there is a Mac version already available. It makes sense for Steam to offer CoD4 for both platforms. I very much like both Windows 7 and Mac OSX, but seem to have bad luck with my Windows on Bootcamp. It might just be me that has this problem, but there must be others out there who wouldn't mind having this classic available for both operating systems, right?