I've received this notice from Sub, one of the users at Fr.Wikibooks. The 10th Libre Software Meeting is happening in Nantes France from July 7th to 11th. See this link for more information about the meeting.
The Libre Software Meeting is all about free and open source software, especially as it pertains to documentation and usability. It's the kind of thing that I really think a Wikibookian should attend, if anybody out there is willing and able.
Registration closes on 1st March, so anybody who is interested should definitely contact the organizers immediately.