Are we gazing onto the cusp of a new horizon, one where our Xbox 360 storage needs aren't shackled to overpriced proprietary hard drives? Probably not quite. Our best friends at Joystiq have managed to obtain documents (corroborated with multiple sources) showing that the folks in Redmond are mulling over an option to enable USB mass storage support for its game machine. To elaborate, that means downloaded Xbox Live and Arcade games, DLC, other associated game files, and even installed disc-based games can be saved to an external HDD of your choosing. The documents further elaborate that the storage device itself must be