Python and Google App Engine Development Resources
The Python community tends to look at code generation; so, @Hoang, if you think code generation is the way to go, I suggest you try just about any other language but Python.
@Dominic has already suggested some great resources, I could point you to more (App Engine Fan, App Engine utilities, etc etc) but they are all based on the Pythonic mindset: understand what you need and what you can do, wrap as much as possible in reusable components, reuse those components from your own sources.
You want magic, wizards and code generation that basically excused you (in theory) from LEARNING AND UNDERSTANDING: giving up Python is not a language that ,
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App Engine Documentation http://code.google.com/appengine/docs/
App Engine Google Group http://groups.google.com/group/google-appengine
Google Video Conferencing I / O http://code.google.com/events/io/
App Engine Poker Book http://appengine-cookbook.appspot.com/
and of course stackoverflow
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