Many including me have been waiting for official Ubuntu / Linux support from Chinese manufacturers for some time now. The Allwinner solution platform may be the best bet so far as the SoC company is also a member of the Linaro project, Linux support may be a good chance to get back some of the lost market share to Rockchip and Amlogic over the recent years.
There are many Linux based images available for different devices already but most do not support hardware acceleration, which results in a very slow desktop UI and poor video playback.
Tronsmart the brand from Geekbuying released today an official Ubuntu 14.04 image with hardware acceleration for their Draco AW80 Meta TV box / mini PC.
Visit official forum post for more info and download links: