screen playing? Do all PS3 games that are PSN compatible work with multi-controller, split screen playing? For Example Warhawk or COD4
If not, how do you play with one system with someone at your house?

Very few games have split screen... They are really moving away from that old multiplayer method.

1. no
2. You can get a game that supports split screen play.

yes there is split screen on cod4 not all games have split screen though