I know only one thing: they are the only one that support the user with bugfix in every place they can reach to fulfill their goal an even paying for open source work to improve other software.... The others embedded boards only have one version kernel linux working (from two o three years ago), one version android working (the same as above) and stop! So please try to work with those board (for serious work) or please shut up and return from the sewer you were before!