I came across a nifty application today: Doxygen. Doxygen is able to parse your raw source files for a variety of languages (with special support for Qt's signals and slots) and turn it into documentation. I've seen the output of Doxygen before with Qwt and several other libraries, but I never realized that it could be automated.
I will definitely start documenting my code with Doxygen. You can expect that Monterey v2.0 and it's corresponding classes will all be Doxygen'ed.
If you want to check out my *very* basic test of Doxygen, you can see it's automatic documentation of my QPID class here.
Hope this helps!