Yes of course there PS3 game Call of Duty Modern Warfare 2 works in the PS3
Yes and and the 360 and your PC. :)
Yes as long as its compatible with Modern Warfare 2
No, Modern Warfare 2 on PC doesn't support the PS3 Controller.
No
there are none!!
Yes, Modern Warfare 2 is available for the PlayStation 3 and also PC and Xbox 360.
There are no cheat codes that I know of for Modern Warfare 2. http://www.ModernWarfareCentral.com/
no
modern warfare 2 !
Call of Duty 3, 4 (Modern Warfare), 5 (World at War) and 6 (Modern Warfare 2) are available on the PS3.Source: Wikipedia
No you cant you must both either have an XBox360 or PS3 to play with each other. The consoles' online networks are not compatible with each other.
It is (Call of Duty Modern Warfare 2).