dot Wonderland blog (and migrating server state)
I just posted a blog at http://blogs.sun.com/wonderland/entry/dot_wonderland_redux. It describes some of the structure of the .wonderland-server/ directory.
This is relevant for those of you who wish to migrate server state and content from one machine to another, or perhaps from one sub-version of 0.5 to another sub-version of 0.5. I outlined some simple steps to do such that I tried out on my own machine.