Ok, I just read the article in "Gameinformer" and it shows that every platform is covered and I think that Death Grin nailed it. It's seems that each platform has it's own development. I've not played any of the console versions of CoD4, only the PC version. From everything that I've experianced, CoD4 is a PC game on the PC. It doesn't feel like a port at all. InfinityWard is a company about quality and detail; I don't think they would be satisfied with a "port". I'll do some more looking around and see if there's any info on this topic out there.