I've setup a site where users can find feature full m0n0wall testing
images. The site will have tutorials, feature implementations
instructions, user manuals, documentation and allow users to post custom
built images for feature specific needs. 

http://paxetman.com/mym0n0

Future feature of this site to include a web based image builder that
will allow for brandability (but still keeping m0n0wall name intact) and
feature addition/removal.

To contribute source/time, please email jgillespie at paxetman dot com
This should help with m0n0wall documentation and new features
improvement and development.

Junior