they already have i think go to www.ign.com or www.gamespy.com
Silly thing is, Baldur's gate 1+2 (to which KOTOR is very much compatible), Planescape: Torment, Icewind Dale, and Neverwinter Nights- the previous games- were all fully multiplayer compatible, except for Planescape and I am not sure why I put that in there now...
Anyway, point is KOTOR is the first one of their games for a while which cannot be played by more than one person and it sucks! It sucks like a big sucky thing! I would far rather play Star Wars with friends than D&D.