As I have modded you (up), I can not reply, so I do it here...
What I find the most amazing thing about the Apple DevTools is that I can switch seemlessly between them and the commandline. gcc, gdb (which may not the best the world has seen, but that is another issue) are all there, and I can just as well edit my stuff with vim and use cvs from the commandline.

Just my 0.02