Do you use the (supplied) gnu tools to create your little apps?

I use Apple's IDE (Project Builder) a lot. EmpMenuX is actually written in java (I am a java programmer by day and I think in java better than in ObjC) as a native Cocoa application. Because most of what I do is in java I don't touch gcc much except for compiling other peoples programs. I use a lot of the other gnu utilities for various things on a regular basis. It is trivial to create a small program with Cocoa (one of Apples programming APIs) using Project Builder and Interface Builder in either java or objective C. Most of EmpMenuX was done in about two hours and most of that time was me trying to find the right API to add stuff to the top menubar.

-Mike