Well, a lot of concept we expect from a computer OS apply to distributed system. AWS, in a few years, might end up to look like less a IaaS and more as a PaaS platform, a Linux distrib for cluster if you wish.

That is you could treat AWS/any cloud as a distributed OS for clusters with VM/containers as processes/threads and services as packages.

It's more or less already roughly the case. Well, IMHO, it's the maturation path for the cloud I can imagine.