We've PC for online play. PSN Store has only select good exclusives like Joe Danger / Fat princess and I already own the top 15-20 PSN store games, thats it, I dont need anymore, and soon every PSN store exclusive games will be up on torrents.
The online gameplay feature is mostly used in FPS. and FPS suck major ass on console controllers, good luck aiming with those analog sticks heh. (KeyB, Mouse FTW)
PC for online gaming, PS3 for offline. thats how its gonna be from now on ;p Besides when 90% of the local gamers have PS3s offline caz of modchip, guess it'll be tough finding local players in online arenas/lobbies unless you wanna play with high pings with foreign players.
Only thing i'll miss, Tekken online :|