1) Tablets with allwinner has exact same problem as zenithink, there has only been leaks of drivers for the tablets, not any official releases. Most efforts take the approach of using the released allwinner sources from allwinner directly. 2) Allwinner does not provide downloadable GLES drivers and other support like amlogic does on http://openlinux.amlogic.com/ 3) Allwinner devices require a Windows(!) closed source flasher to flash the devices, http://elinux.org/Hack_A10_devices