Great success! I got it to work, with the following change to the exploded war:
1. In the wiki.war\themes directory, make a copy the default directory and rename it openremote.
2. Go to your browser and bring up http://localhost:8080/wiki/ again.
It looks like the
openremotedirectory is missing. I see it is also missing in the seam SVN trunk repository. Maybe it needs to be added to SVN?