If this turns out to be something "special" then no one will be happier than me, but I still remember the over-hyped promise of CP/M for the Atari.
NitrOS-9 Level One runs quite well on a 6809-equipped Atari. I worked on the port myself, and am quite pleased with the results. So there is no hype here -- it actually works.
I see a lot of speculation on what the Liber809 is or isn't, or what it's supposed to do for the Atari A8 platform.
To be clear: I created the Liber809 because *I* wanted to see a 6809 and NitrOS-9 run on an Atari -- nothing more. The fact that it is a complete, salable product is lagniappe (read: bonus). I'm not trying to push the Atari community in any particular direction, nor am I trying to prove anything with this product besides the fact that it could be one. It was simply for my own satisfaction (and I'm quite satisfied).
There's no reason to read anything more into it than that. If you want one, then by all means buy one. If you don't, then that's ok too. It was a fun project for me, I learned a lot, and I made friends in a new retro community. That's a win for me.