The Xbox 360 sold out completely at release and by the end of September 2006 had sold 6 million worldwide.
Its Xbox Live service allows players to compete online as well as download games and additional content.
Since Microsoft owns the intellectual property rights to the hardware used in the Xbox 360, they can easily switch to new fabrication processes or change suppliers in the future to reduce costs.
John Carmack stated at QuakeCon 2005 that the Xbox 360 has "the best development environment I've seen on a console".
Only six games were initially offered in Japan, and eagerly anticipated titles like Dead or Alive 4 were not released until several weeks after launch.
The Xbox 360 controller is significantly different from the original Xbox controllers, the Duke and the S models. The black and white buttons have been replaced by bumper buttons, which are on the shoulder of the controller, right before the triggers. It is noticeably smoother, has a white-gray theme, and is very small and ergonomically built.