Werner Vogels:

In two weeks we’ll present a paper on the Dynamo technology at SOSP, the prestigious biannual Operating Systems conference. Dynamo is internal technology developed at Amazon to address the need for an incrementally scalable, highly-available key-value storage system. The technology is designed to give its users the ability to trade-off cost, consistency, durability and performance, while maintaining high-availability.

Let me repeat this before it gets misunderstood: Dynamo is an internal-only tool. It is not a public web-service and will not be offered through that channel. If there are any questions then they should not go to the AWS forums, the AWS evangelists or Amazon PR, as they will be not be able to help you.

The full pdf is available from Werner's site.