Gephex for Mac PPC
Around September 2005 I created a debian package for Gephex on a PowerBook G4 (not an Intel) running OS X 10.4
Feel free to grab it here.
Note: In order to use this you will need to have Apple's X11 and Fink installed.
This was built from the latest source code at that time.
In the mean time, I am doing the majority of my work on an AMD machine running Debian Linux so I'm not sure how much I can help you out if you have problems with it (sorry!) . Also, since I have no access to an intel Mac, I won't be able to provide a package for that. For general info about Gephex, please see the Gephex home page, wiki and discussion lists.