So with a lot of help from Tanner Lovelace, I've now got pretty much all of kdelibs building with Qt/Mac. There's still plenty of work to do, but this is a definite big step. libkdecore and libkdeui are probably the worst of the lot to get working, it should be mostly downhill from here.
Patches updated as I get more built here.
In related news, Peter O'Gorman updated his libtool patch to handle frameworks more gracefully, and passed it on to the libtool folks. Once that gets merged into libtool CVS, I'm going to ask about getting KDE's libtool updated with all of the darwin fixes.