I just did another build with my osx-app branch for Mac OS X 10.6 (x86_64), and was wondering if my build works for anyone else. The only thing that I know doesn't work is the help -- everything else should work fine. The app can be downloaded here
It may or may not work on newer version of OS X. If you do try it on a new version of OS X, you will need to install XQuartz because I didn't bundle the X11 libraries with the app.