I've just coded up a documentation generator that can take the OpenGL man pages in DocBook format and turn them into (X)HTML.  We were previously using the DocbookXSL stuff, but unfortunately that takes hours and hours to process the OpenGL manual set.  With lxml.etree and fairly straightforward coding I can produce the base documentation in about 20 seconds now.

I've got the Python signatures showing for regular ctypes functions and wrapper objects, but not yet for the custom-written wrappers.  Don't have any wrapper-specific information yet.  There's still rough edges wrt e.g. what Python methods are related to which C methods (the Python methods occassionally show up under two C methods).  Still, you can browse and read the man pages with hyper-linking and reasonable appearance.

The mathml is getting included in the final document, but it doesn't seem to properly render on my Firefox 3.0.1, I gather there's some xsl stylesheets necessary to make it look pretty.  Will have to track those down.  Need to get the links-to-Open-Source samples re-created and then need to look at PyOpenGL-specific documentation sections.  Not tonight, though.