@ultem my guess is the software support is non-existant. They likely made sure to use parts that were supported well by linux drivers but beyond that they wont supply any sort of ready-made distro or anything like that. My guess is you solder it up start with a blank system and the rest is on you, no support.
But then again do you really need it? As long as there are linux drivers for it its just a linux box, so install and use whatever software you want, the support comes from linux not the hardware dev.
So yea even with completely no support from the software side, as long as they picked hardware that has drivers, I suspect it wont be much of an obstacle.
The idea looks great, but I'm concerned about the software and the support. If you explore it in depth, I'd be grateful to hear your opinion on it.