After gaining the support of Valve, Epic and Unity 3D, Linux gamers have yet another win on their side today as Alienware has made Ubuntu an OS option for its X51 small form-factor gaming rig. It'll come with Linux-friendly drivers from NVIDIA right out of the box, and you can of course install Steam for Linux on it from the get-go. As a reminder, the X51 is available in Core i3, Core i5 and Core i7 models, and can be upgraded to 8GB of RAM with 1TB of storage, with either a NVIDIA GeForce GT545 or a GTX 555 card. Features include HDMI 1.4, eight USB ports (six are 2.0 while two are 3.0), digital 7.1 surround sound, on-board WiFi and gigabit Ethernet. Pricing for the base Ubuntu model is $599, which is about $100 less than its Windows counterpart. Whether you're into Alienware or not, it's great to see more than one gaming hardware company embrace the open source movement.