For the curious, it's a reST document (http://docs.python.org/documenting/rest.html) so were you to check out the source via SVN (http://code.google.com/p/jaikuengine/source/checkout) you could use some tools to convert it to a more readable format (if you have docutils installed it probably came with some variation on rst2html or rst2pdf).

Though, looking at the Makefile it looks like you could also just run 'make api_docs'