Yes, sorry. Didn't mean to sound quite so dismissive, I just had a quick look at the site and there wasn't enough info to make a comment.
I think it's really cool that people are out there trying this sort of stuff, it's the kind of thing I'd quite like to do given the choice and the time. Re-inventing Unix doesn't really interest me though, which is why my inital interest in Linux petered out I guess.
I'd like to play with really radical ideas - e.g. Do we really want hierarchical filesystems? We don't seem terribly good at organising information that way. Given a completely clean slate could we do better? And what would an OS look like if it was fundamentally designed to be Object Oriented, even down at kernel level? Would inheritance and polymorphism give us more stable drivers? Could it ever be performant?
Still until the day I find time, I'll watch the Going Deep videos with great interest and continue to read up on Longhorn and onwards to see where the future will take us. And maybe one day...