drushrc.php

I'm in the process of finalizing a simple GIT workflow in our Aegir environment and have stumble into a bit a road block giving Drush capability. We are building on the multi-user setup recommended by mig5 (http://perlucida.com/blog/software/four-tips-for-developing-drupal-under...) that takes advantage of the group permissions set by Provision (and adding developers to the "aegir" group) in the /sites directories. This combined with dropping some .git repos in the site root seems to be working pretty good for us so far but none of the dev users can use Drush.