Well, you still have to define and set up the subpage relationship, right?
With the Plone Zwiki we never did that. That subtopics list just automagically appears based on what the page is linking to... of course it can't be and it's not perfect, I'm not sure how it handles recursion for instance (it must just truncate).
But it works well enough. For instance, see the Subpage list on the front page -- http://www.mapinfo-l.com/Wiki/FrontPage Also, see the subsection Subpage list for MapBasic Development -- http://www.mapinfo-l.com/Wiki/MapBasicDevelopment
No one had to define subpage relationships, I think it just happened based on how the pages were created and are linked. Maybe this is something unique or different between the architecture of Zwiki and MediaWiki -- or would it be straightforward to write and extension for MediaWiki to do this?
Thanks, Eric