http://web2py.appspot.com/t3/default/wiki/main (there is a video tutorial)
T3 version 0.2 is out. Now you can develop for GAE on GAE and it could not get any easier.
T3 is a development platform (built on web2py) that works like a WIKI and it lets you embed python code and "components" in wiki pages. Components include CRUD forms, attachments, reviews, comments, google checkout buttons, charts, all web2py helpers, functions and validators, and any user defined function.
T3 lets you create models, procedures, and edit stylesheet using the web interface. Everything is stored in the database. Nothing on filesystem.
The entire platform runs everywhere python runs, including GAE. Massimo -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html