For all the people saying "There is split screen, he is just whinning", at least get your facts together. YES, there is multiplayer split scree on PS3, but people are complaining because you have to be on a GUEST ACCOUNT, but 360 users can use a SEPARATE ACCOUNT. PS3 doesn't have "hardware issues" because a few other games have done it too. That's seems pretty messed up if you ask me.
I for one own the game for PS3, and i have played the game on a friends 360. PS3 users did get the short end of the stick, and I'm sure PC and Wii users did too. For PS3, there is constant lag, low frame rate, we can BARELY get into a game, even with local search on which is also broken, parties being constantly broken up, host being given to person with bad connection causing everyone in lobby to get 1-2 bars, etc. But on my friends 360, most of these problems were never seen at all.
This petition is really about how Activision/Treyarch charged the same price for PS3 users when it was clearly inferior to 360.
Hell, I'm pretty sure if any of you people were experiencing these problems, you would be mad too..