Apple's OSX developer site is at [link|http://developer.apple.com/techpubs/macosx/Cocoa/CocoaTopics.html|http://developer.ap...aTopics.html]

Looking through the online documents shows that their compiler _is_ gcc. AFIK, there is a complete suite of developer tools [Emacs, make, jdk 1.3, either rcs or cvs, and the NeXT surplus Project and Interface builders]

Sometime _real_ _soon_, I'll start playing with it myself.