Actually my second sentence was not connected to the first. I was curious if there are any PaaS providers using Docker as the underlying infrastructure. And I

Actually my second sentence was not connected to the first. I was curious if there are any PaaS providers using Docker as the underlying infrastructure. And I also would like to setup openstack-docker and play around with it (not inside a PaaS or VPS of course). I did see your tutorials though, definitely another great way to test out Docker quickly.