I did produce the executable using MRJAppBuilder, this will take a bunch of .jar files and some parameters and will make a real MacOS X application out of it. You will only need to do it once, as you can update it by copying the newest .jar files into the .app bundle. The CVS build has the ads turned off, by the way.

I also got rid of the RunLime thingy, I just produced a proper manifest file with the class path and main class needed. This way one can also start it by directly double clicking the LimeWire.jar file, but for MacOS X it is better to use the MRJ version so one gets a proper icon.