mysql postgres database flat file gsoc google cummer code

Hi,

I'd like to present an idea for the 2008 google summer of code (and in a more general way an idea for Drupal).
The idea is about using flat files instead of a database. After googling a little, it seems that the idea is not new (http://drupal.org/node/124353 and http://drupal.org/node/216485). However, it seems that no visible results are here now.