The "ktd" package as a whole is generally undeveloped, but there should soon be available one or two subpackages.
Most programs are written in Python, some, for Android, will be Java. Server-side code is oriented toward Google's Appengine and utilizes Django and other utilities provided by the open program community.
Documentation is located at the Knowledge Tool Design group on Google (link in sidebar).
Code may be accessed via svn.
These details are provided for information only. No information here is legal advice and should not be used as such.