I know it’s probably fun for those into it, but the GLSL language works flawless with JOGL and is the only true crossplatform shader language.
Quite versatile and powerfull too.
Just an idea 
dropping cg support isn’t a good idea IMHO, especially with the ps3 it is far from dying…
however, seperating it from the main jogl project would be nice, since I agree that most people don’t need it…
Yup. Moving it out would be good too. I mean? Why do I need yet another DLL?
You don’t. If you don’t use the Cg support you don’t need the associated DLL. JOGL’s native library jar files for Java Web Start don’t contain the jogl_cg DLL/.so.
Personally I think the Cg binding adds value and doesn’t significantly increase download size so I don’t see a compelling reason for taking it out. Separating it into a separate jar file would make it more difficult to deploy it.
I can delete it? Cool 