Setting up an environment to edit pinax itself is documented at
http://code.pinaxproject.com/wiki/PinaxInstallationForDevelopment/
and
http://code.pinaxproject.com/wiki/PinaxDevEnvironmentInstall/
but there are not any docs for the development process for each app itself.
Also links are needed to the appropriate page on github for each app.
I would go so far as to say that a clone_app pinax-admin command would be awesome that would write a lot off the boilerplate and create all of the directories where they should be. I think that would be pretty awesome.