I had heard of it. Technically, it looks like an awesome project.
The only reason I did not dig deeper is that I am no Windows person, full stop. I achieved my (Linux) laptop experience with the Pro1 quite some time ago and and have been a happy camper since. The big advantage of a Linux desktop is that it can run in parallel with Android (using the same Kernel) so that you do not sacrifice any "smartphone" use cases in favour of running the desktop OS.
I do envy them for their accelerated 3D graphics though, which is not at all possible with my solution as of today. 😞