Not sure if anybody reads this since the thread is already off the first page, but still: Thank you all! I think there is some great advice and I am positive that it will help me.
Just skimming over the article, it seems to me that the framework authors are trying to do something similar to Routes in Rails or Pylons (http://routes.groovie.org/).
Actually, I find Routes' much clearer and easier to use (regular expressions and readability don't go very well together, IMO) than Django's URL-scheme. The url-generation feature of Routes comes in handy, too... don't know if Django has something equivalent.
Granted, regular expressions may be more powerful, but I am willing to sacrifice some expressiveness in exchange for ease of use and improved readability.
So, I can see why the framework authors ported that functionality (sort of).