Well I don't hear anything about a party system but cross game chat is definitely a step in the right direction. In fact if they get a party system and cross game chat in place that's what I see as differentiating XBL from PSN bar the download speeds from XBL seem to be faster for me than PSN (local servers or something with XBL I guess) however the online games I play on PSN (LBP, Uncharted 2, Warhawk) all work just as well as any online 360 game I've played.