dartttt writes "Dell has launched a new Ubuntu gaming desktop (first ever?) . Alienware customers can now choose either Windows or Ubuntu when buying a new X51. Ubuntu option is initially available to U.S. customers only and the price starts from $599." Also in Ubuntu news: Canonical announced on Friday the final beta release of Ubuntu 13.04, aka Raring Ringtail (the main release, as well as the growing flock of other *buntus).