do different platforms use the same konami-servers? i own a ps3 and a pc. i don't want to buy it twice to play against a friend of mine who only owns a ps3... and another question: can you use more than one sixaxis controller the same time on the pc? using only one works perfectly... if yes, do they have different id's in the controller settings e.g. "sixaxis pad #1" and "sixaxis pad '2"?