This month, full hardware support for the so-called S3 board (it has the same Exynos chip as the Samsung Galaxy S3) will be available under Ubuntu on February 13, 2013.
You can find the distributor's project page at:
This would make the board a fully-fledged desktop replacement. Especially in view of what Nvidia is planning with its Cloud Gaming Streams (http://www.nvidia.com/object/cgaloud-gaming.html) and Project Shield, it would make a powerful and power-hungry gaming PC superfluous.
Just think, an average gaming PC consumes approx. 350 - 500 watts under full load. The OrdoidX consumes just 5-6 watts, and is also silent and extremely space-saving.