I think as long as SE is not charging the PC audience, they won't begin cementing a path for the PS3.

As another has said, until SE can turn around negative press on the game as it is now, they will not have success on their PS3 launch.

If you're solely waiting for the PS3 version, may want to do other things and check back in at the end of the year for updates (i.e. if beta testing has begun, release date has been shipped)