Reminds me a lot of what joyent did. They basically re-implemented the whole docker daemon APIs and exposed them on the public internet.

When you ran containers the underlying host wouldn't be a single host but a whole datacenter. You could define public networks and the IPs you'd get there were actual public ipv4.

So basically you'd only have to do "docker run ..." in order to deploy a container on that public cloud and have it exposed to the public internet.