Amazon is introducing a new AWS service to extend to a virtual private cloud (VPC). Basically it offers the enterprise to extended an existing network via VPN to a logically isolated set of EC2 instances.
From my experience selling cloud-based services, this will play well with the enterprise. Security is critical for enterprises today, tomorrow and in the future. Cloud providers constantly have to get over the security hurdle — even AWS. VPC should be appealing to the enterprise since similar services are already established. Governments will also be interested.
Werner Vogel’s blog post: Seamlessly Extending the Data Center – Introducing Amazon Virtual Private Cloud