Indeed. I'm a bit curious as to why DotCloud released Docker? I mean, sure, someone was going to have an easy-to-use container system sooner or later, but for now that is one of the few defining features that DotCloud has going for them... although one of their competitors is successfully using a modified version of Cloud Foundry (AppFog).
We're been working with the DotCloud folks on the container problem since long before Docker was public. They've been very supportive of our efforts to build a full featured PaaS based on Docker and knew about it long before they released Docker publicly. They have their own strategy for their company and product, releasing Docker was a very intentional part of that.
