I have installed OpenStack Diablo (version 2011.3.1 released January 20, 2012) on Linux Ubuntu Oneiric (11.10), including a working version of the essex-dev dashboard (Horizon). By installing the development version of the dashboard, you can manage almost everything, including: - In the project panel: instances, volumes, floating IPs, security groups, images, and instance snapshots. - In the admi