Cameron Neylon
"I therefore propose DistriWiki, a set of protocols and MediaWiki extensions that push out compressed snapshot differences of the Wikipedia software and which allow mirror MediaWikis to receive these changes and make decisions based on them." - also interesting comments. - Daniel Mietchen
Fully agree - that's basically what I meant with "federation of community wikis linked by open standards" at . - Daniel Mietchen
A technical solution is described at . - Daniel Mietchen
It seems to me that it would be trivial to implement this in principle using any of the wiki engines that use a DVCS backend. However, MediaWiki isn't one of these and there may be scalability issues. - Matt Leifer