Amazon Web Services announces the general availability of Ubuntu Pro on Amazon EC2 in a subscription-included model. You can now easily deploy Ubuntu Pro on-demand instances and purchase Ubuntu Pro Compute Savings Plans from the AWS EC2 console, and get five additional years of Ubuntu security updates from Canonical. You will be charged on a per-second basis for Ubuntu Pro EC2 AMI instances. For any new Ubuntu Pro EC2 AMI deployments, you will now see Ubuntu Pro charges in the Elastic Cloud Compute section of your AWS bill.
Source:: Amazon AWS