However, they just announced at the Game Developer Conference a virtual life product that comes free to the PS3 (cnet link). It looks good and focuses on social interaction rather than effort (which characterises games such as WoW) while also including a show-off gallery for game trophies.
I think this is a very positive announcement for Sony. If well executed it could make the difference between slide into irrelevance and climb back to dominance. I've no information to tell if it will be well executed. Sony was one of the first companies to enter this field with the game Everquest, but have lost their popularity in the multiplayer games field recently.