"The XBOX 2 SDK has been seeded to developers on dual Apple Power Mac G5 systems running a custom Windows NT kernel. The Apple Power Mac G5 is based upon two of IBM's 64-bit Power PC processors and features ATi RADEON 9800 Pro (R350) graphics. However the R350 is believed to be an interim solution and will, in due course, be superseded by the forthcoming ATI R420," says The Inquirer.
Comment: Next questions: will the Xbox hackers be able to take a $299 console and run OS X on it, and will it be faster than a $2,500 Mac?