I’m very excited today :-) My co-worker Anders Carlsson has spent the last two months with starting a port of GTK+ to the Mac OS X Cocoa framework, so GTK+ applications will eventually run natively (without needing X11) on that platform.
The port is still in its early stages and incomplete, but after these few weeks it’s already complete enough to give compiling GIMP a try.
A really good port of GTK to native OS X widgets would be a HUGE win for OS X.
Wow, that would be really killer.