Originally posted by: CKDragon
That sounds odd. So in co-op games only one person/psn id gets the save game/trophy credit?
well, games allow you to bring other system profiles into play, just not more than one PSN ID. So, no trophy stuff, but some stuff, depending on how the game does it, can be saved to multiple profiles in play, but I don't even think that is a common thing.
But yeah, I think in co-op games all progress is saved only to the person who loaded up the save content, i.e. first player's profile.