Hi , 

No one brought this up as an issues but I was wondering if converting from another wiki to MediaWiki or the other way around is a problem for people and new tools to do that would be useful. How often is it needed and how is it currently done? I see mostly old posts and tools around. From lookng at http://www.richardcarterconsultancy.com/2011/12/twiki-to-mediawiki-conversion/ and http://www.mwusers.com/forums/showthread.php?8098-Moving-to-MediaWiki-from-Confluence I infer it's not an easy task. 

Also, it doesn't seem (from my humble observation) to be done often. Is that because its not needed or because of the lack of friendly tools? 

Thank you.