Armbian support was added and first beta build was created yesterday: Ubuntu Xenial CLI with 4.4.50. It's already possible to build your own Debian / Ubuntu image from sources with our tools. Currently it's ready only for testing and bug hunting.
We would appreciate help with applying board support packages to provide video acceleration and 3D. Nobody had time to deal with this yet and we plan more playing around base things and adding mainline kernel as an option to the build process.