James: yes, you are correct. We're preparing an API call that uses the RightScale web site as a proxy so you don't need to have the EC2 credentials on the instance itself. That can be useful in certain use-cases. We will also be providing our stuff openly, so you can grab it. Finishing that is a few weeks away, unfortunately as we have too many other things on our plate we need to finish. [Yeah, can I rent competent developers in the cloud too? ;-)] Oh, one more thought, the rule we use for rolling the snaps is "keep the N most recent completed snapshots". So the algorithm is: find the Nth most recent 100% completed snapshot, then delete all older ones. This way you avoid situations where you're keeping the last 10, but they failed or haven't completed yet for whatever reason.