Entroper on 13 September 2007
I'm sure much of the idea revolves around prioritization. You look at a player's location, and you send that player lots of packets for those players and game objects that are near him, and only a few packets for objects that are far away. You still probably need one hell of a server for this kind of game, but the bandwidth requirements would scale something closer to linear (whereas non-prioritized would scale more like a quadratic).
