Hi,
I created a new extension for MediaWiki, "Semantic Forms", that allows for user creation of forms for adding and editing pages with semantic data, provided that data is represented through templates. This may be of little interest to those who aren't involved with the Semantic MediaWiki extension in some way (currently Semantic Forms won't fully work unless SMW is installed), but I wanted to publicize it here. You can download the code, and see documentation and examples, at this URL:
http://discoursedb.org/SemanticForms/
Any comments and questions are welcome. Comments on the source code are very much appreciated as well, if you have any interest in going through it.
If all goes fine, I'll add a page for it on mediawiki.org soon.
-Yaron