Lubuntu (that's Ubuntu using the lightweight LXDE desktop) runs pretty darn well considering on the G2 (without even hardware acceleration yet):
If you have any issues installing or configuring Ubuntu on the Gemei G2 specifically, feel free to post here and you'll probably get better support since others use the same device.
I made a thread with more links to more discussion and pictures here:http://www.slatedroid.com/topic/35910-desktop-linux-ubuntu-running-on-allwinner-a10-devices/
The more people we get tinkering with this the better!
Edited by someperson, 19 July 2012 - 04:21 AM.