I have experimented with a combination of categorization and the
dynamic page list extension:
http://meta.wikimedia.org/wiki/DynamicPageList but it isn't nearly as
handy as it could be.
The WikiGTD doesn't work for 1.4, and I don't believe it's multi-user:
http://meta.wikimedia.org/wiki/WikiGTD
I was wondering what solutions people know of with regards to
MediaWiki as, or used by, a task or project management tool.