Realtime Worlds, a development house that used to be under the Rockstar roof, is now hoping to partner with or sell it's APB (All Points Bulletin) work in order to give the world GTA Online, the rumored MMO that would further expand Rockstar's e-domination.
With the multiplayer going the way its going, we're expecting GTA to house its own MMO with its own technology as it seems so close already. But with a few MMOs in trouble, the fad may be slipping away and Rockstar is not one to hop onto sinking ships.
joystiq.com: Rumor: Realtime Worlds hopes APB becomes GTA Online
For a little taste of that multiplayer action in GTA IV watch this: