Hi,
As part of some work I'm doing with the Annodex association and some clients I have packaged up Semantic MediaWiki and MetavidWiki for Debian.
These packages are now in the unstable archive. They should make their way into testing and therefore Ubuntu in the next week or so.
If you have the time please test them out and let me know if you find any problems.
Cheers,
-- John http://www.inodes.org/