Yesterday, I started a proposal to create a new Wikibooks project to help provide a place for people to work on multilingual textbooks, textbooks undergoing translations, and to write books in languages which do not yet have a project (maybe because there too small or not enough interest has been generated yet). I also hope this project if started can be a place where people from all Wikibooks projects can communicate with each other and work together.
Whether it gets started depends on people's interested in contributing to such a project. If your interested in contributing to such a project or even if you think this is a bad idea, please contribute to the current discussion going on at http://meta.wikimedia.org/wiki/Requests_for_new_languages/Wikibooks_Multilin...
and explain your reasons for being in favor or against this project. You can also begin to contribute to the test project for it at http://incubator.wikimedia.org/wiki/Wb/mul by beginning any translations you'd like to do, multilingual books you'd like to begin or creating books in languages that don't have a project yet.
-- darklama @enwikibooks