This is an enhancement for your consideration. Feel free to reject it.

Currently, all the installers of JBDS for Mac OS X and other platforms are just plain jar files which you launch either with "java -jar" or by double clicking if the OS supports this.
When you launch the jar, the icon that appears in the Dock is just a default app icon. It would be possible to bundle the installer on the Mac so that it would be a native Mac OS X app called e.g. "JBDS 4 Installer.app".
The instructions on how to achieve this are described here:
http://java.sun.com/developer/technicalArticles/JavaLP/JavaToMac3/

I just tried it and it's easy.

I think it would be easy to implement this in the building process. The benefit would be an installer with our custom icon in the Dock and also on the installer itself - i.e. in Finder.