Yes, but it will be a while, I think, before they actually offer something based on it. I don't see any service based on it at this point. AWS ECS is based on Docker.
AWS Re:invent is in the end of november. I'd guess there will be some annoucements there ...
That's what they said last year. We got Blox instead.
Don't they use Xen?
For Elastic Compute Cloud (EC2) aka hosted VMs, yes.
For ECS (EC2 Container Service), they use Docker on top of their VMs.
So they have a Docker offering but not a Kubernetes one, at the moment.