I haven't had a chance to try this but it looks very promising.
Looking around my room, I have a few old PC's that I'd love to turn into a dedicated emulated Amiga machine that boots straight into a UAE environment.
Many people seem to be confused about how this works, but we've got to remember it's only a beta and I'm sure instructions and install procedures will improve as development progresses.
I'm going to keep a very careful eye on this and I hope what you said Charlie is true. Looking through the website I still couldn't tell if it only boots into a light Linux themed Workbench, with UAE available to launch, or be made to boot directly into a UAE environment without user intervention.