Check out MicroXwin (Score 1, Interesting)

MicroXwin (http://www.microxwin.com) is a completely new X windows implementation which is small, fast and compatible withe standard X. Here is a video of MicroXwin performance on Raspberry Pi: http://www.youtube.com/watch?v=zttcdPtJN8A Raspberry Pi is some what dated. Here is a video of MicroXwin on more recent SOC such as Allwinner A20: http://www.youtube.com/watch?v=T18FhSTQ08k