In order to support qa.drupal.org in testing Drupal 7, we've made an Amazon Web Services AMI of PIFR 2 on Debian Lenny (64-bit). The purpose of this client is to grab a test from qa.drupal.org, run it, and send the results back to the server. If you wish to fire up an instance and donate to testing of Drupal 7, the instructions are posted here: http://groups.drupal.org/node/39942