Mac due to the differences in update frequency between the systems. The PlayStation 3 version will offer three control methods, which include using either the DualShock 3 controller, PlayStation Move or USB keyboard/mouse. Visit below to get more info: http://blog.counter-strike.net/ http://en.wikipedia.org/wiki/Counter-Strike:_Global_Offensive and watch the trailer here….. http://www.youtube.com/watch?feature=player_embedded&v=edYCtaNueQY   How an ATM works!! Posted