First, the installer does not work out of the box. The only way I can launch it is by fixing permissions on the command line. The file install.app/Contents/MacOS/install is not executable, setting the executable bit makes the installer work.
Secondly, the app explicitly requires JDK 1.4.1. I've been running it with 1.4.2DP1 (all the latest EAPs) without any problems, so can the Info.plist file JDK setting be changed to 1.4+ rather than 1.4.1?
Also, what's the status with using the screen menubar? I just turned this property on and it looks pretty nice, the only drawback being an extra empty menu item showing up. Any hope of having this cleaned up and so enabling the screenbar by default?
Finally, how about adding a preferences handler to show the new control panel? It's quite OSX like and having a preferences item like every other OSX app I think would help the app feel even more native.