Uh...this is not the first game to allow console and PC gamers to play against each other...I'm pretty sure the recent Shadowrun also had that.
The ability to make maps and then play them on PS3 is cool...though mapmakers will have to own both the PC game and PS3 game it sounds like...
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )