Makk is still involved to some degree, but I don't think he contributes much code for the 800. Especially since he has a TP2 now
I have a completely functional build working on my 800, I'm just saying it's not getting much in the way of developer attention either!
So can you post your build for others to benefit? I'd like to compare to see what I have for the 500 users. I can't test it, but I don't mind helping provide resources for it.