I have created a special page for MediaWiki that allows you to watch activity on your wiki in real-time using AJAX. You can preview it at http://wiki.case.edu/Special:AJAXWatcher
It is still a work in progress, but an extension like this goes a long way towards making MediaWiki a better product for real-time collaboration. I haven't excessively tested it across browsers, but it works in Firefox 1.5 under Linux.
The source code can be obtained at http://opensource.case.edu/projects/MediaWikiHacks/
As always, I am open to any suggestions or observations you may have.
Gregory Szorc gregory.szorc@case.edu
mediawiki-l@lists.wikimedia.org