There's a demo running at http://www.museatech.net:8000/dav/.
Some features that have been troublesome are disabled. 95% of the code is there, but there's wierd timeout issues on all the LOCK/UNLOCK stuff, so they're set to give an HTTP405 error.
The beta is at: http://www.museatech.net/ns_dav-beta-1.tar.gz
I could use any spare hands on finishing this effort.