Seems that a member over at the AVS Forum by the name of adams828 got his hands on the retail copy of Call of Duty 4: Modern Warfare. He took pictures of the box as well as boxart and posted them on the forum. The most surprising thing he posted were these amazing screenshots. Now he claims that the these shots are from the Playstation 3 game, running on a PS3 system. Seeing these images must make PS3 owners very happy. All I can say is from what these shots show the PS3 version of COD4 looks pretty damn awesome... 

Thanks to member adams828 from AVS Forum.