Major Nelson has confirmed that GTA IV: The Ballad of Gay Tony is now available to download on Xbox Live for 1600 MS points.
"The Ballad of Gay Tony injects Liberty City with an overdose of guns, glitz, and grime. As Luis Lopez, part-time hoodlum and full-time assistant to legendary nightclub impresario Tony Prince (a.k.a. "Gay Tony"), players will struggle with the competing loyalties of family and friends, and with the uncertainty about who is real and who is fake in a world in which everyone has a price."