http://www.psxextreme.com/ps3-news/2424.html

While Resistance: Fall of Man can support up to 32 players online, Insomniac is taking things up a notch with the sequel: up to 60 players can compete on dedicated servers, with lobbies for individual squads. That's just insane. We'll also be getting a more robust online experience, as there will be classes (Heavy, Special Ops, Medic, etc.), "partial randomized geometry,"

and there's some more news:

PS3 Rewards will be more than just Achievements

http://www.psxextreme.com/ps3-news/2421.html

According to Kotaku and PlayStation Network boss Eric Lempel, PS3 achievements - perhaps they'll be called something else, but whatever - are right around the corner. Not surprisingly, the feature will arrive with the implementation of the highly anticipated online service, PlayStation Home.

"I know that an achievement system is very important to our consumers," said Lempel. "With Home, and in addition to Home, we have some very exciting programs planned to recognize our consumers gaming skills and loyalty in new ways that go well beyond a single score."