We have a test THREDDS server running at
http://motherlode.ucar.edu:8088/thredds/
with an enhanced catalog at:
http://motherlode.ucar.edu:8088/thredds/catalog.1.0.xml
it includes a utility to convert old (version 0.6) catalogs to the new
syntax.
We hope to make this the default, stable THREDDS server on motherlode
ASAP, so please look at it if possible and give us any feedback.
You might want to look at it with the latest THREDDS viewer:
http://www.unidata.ucar.edu/projects/THREDDS/tech/viewer/index.html