Rockstar's soon-to-be-released Grand Theft Auto 4 has the potential to be one of the biggest titles of all time. Looking to cash in on that potential, Amazon and Rockstar Games have teamed up to create an interesting new aspect of the game that will leverage the ever-increasing bond between gamers and music: Grand Theft Auto 4 is set to include a unique new model for digital music distribution: gamers will be able to buy music for their iPods, PCs, and other devices in-game. (Ars Technica)