Socom is awesome! I just bought it Saturday night and its already one of my favorite PS2 games. I picked up the Network Adapter, too, and I've been having fun playing it online. Anybody else have it? If so, we should definately get a game going sometime...
A friend of mine has it, so I've played some one-player games. No experience in online mode, although everyone sais it's awesome. I'm simply amazed at the headset voice-command feature. I can just picture Madden 2005 being all voice-activated play calling. Play just like a real NFL coach!