FreeMind 1.0.1 repacked for Webstart.
This webstart app registers association with *.mm files, so it will launch FreeMind and open file if you'll double-click on .mm file.
Here, FreeMind files repacked from original binary distribution, not recompiled from source. I just added the launcher. Note that repacked files will be signed with self-signed generated certificate, so you will need to enable certain security settings.
FreeMind home page: http://freemind.sourceforge.net