As an exercise, I have redone the following wiki:
http://werkzeug.pocoo.org/wiki30/
using web2py:
http://web2py.com/examples/static/web2py.app.wiki3.w2p
Same tables and same actions.
The web2py version of the wiki has versioning like the original but,
unlike the original, it has user authentication too. The web2py
version uses markdown wiki syntax.
We take the people at werkzeug for providing such a clean and simple
wiki design.
I apologize I did no have time to make a scree cast but perhaps some
of you can help with that.
Massimo