I am very interested in this too (and Jason certainly too :-) )
But if it works it will propably be not very fast. As far as I know they are concentrating on implementing all 3.1. features but it is still not optimized for classic hardware (AGA, ECS,...) but that is what they want to reach. From features it seems to me very complete now. Scalos and Magellan are included (next thing I will work on)