Please note that the list of cities from http://groups.drupal.org/node/26241 (as per the BoF in Paris) is just a list of possible suggestions. Please see the draft document that has been proposed for city selection guidelines: http://groups.drupal.org/node/27246
The goal is to publish that document at the end of this week (after incorporating feedback from the community) and to start receiving city proposals immediately after that. Since we need to have recommendations to give to the Drupal Association by October 15 the proposal phase will have to be short. The proposal phase will probably end October 1. After that we will have the proposals reviewed by the events agency to gather their feedback in time for the October 15 deadline.
If you want DrupalCon in your city/country in 2010 please review the document and add your feedback!
http://groups.drupal.org/node/26241