Kawan2... Please read this. It is a free PES e-magazine made by fans, and the quality of the magazine is just fabulous and professional-looking. Have a look:
http://www.gamerzines.com/pesfanzine/One GREAT information that I learned from the magazine is about the online modes. For Xbox 360, only 1 vs 1 online, but with totally no lag. For PS2, up to 4 consoles can play online together, and each console can consist of 2 players. This means, up to 4 vs 4 can play online!

And get this: PS2 and PC players can play against EACH OTHER!!
Know what this means? This means that there is a HIGH probability Konami is ditching the IP to IP connection for online matches, coz if Konami use IP to IP, PS2 DEFINITELY cannot connect with PC, coz they are totally different systems altogether. Therefore, we can assume that PS2's will connect to a server, and PC's will also connect to a server, and we play against each other ON A SERVER. Playing on servers will totally eliminate lag... Am I right?
Really can't wait to get my hands on the original game. Mine's gonna be delivered on 10th November. Hurry up!