I have no doubt that PSN only games will be supported since they all are lower end games as most are multiplatform anyway. But the bigger retail games could end up being left in the dust is Sony doesn't go with a Cell compatible chip like is rumored.
As for me, I always keep my consoles so while I find backwards compatibility convenient it's not a deal breaker because I can always pull out my old system. With that said, there aren't many PS3 exclusives that I've ever felt the need to replay so I'm not sure if I'll even feel the need to go back during the next gen. I'll definitly want to replay games like the Mass Effect and Portal series but I didn't get them on PS3.








