It appears that Ktoon, the freeware 2d animation development has hit a dead end and is looking for help to keep development going. Personally I have never used it as I have never seen a stable release of it (stable as I would think so that is) but in any case they need help and are asking. Sort of like the free the blender code fund raiser all those memorable years ago. If you are interested, then please visit the site http://ktoon.toonka.com/index.php?option=com_frontpage&Itemid=1
I wish them the best with their efforts!