So cool. In case anyone else was wondering how to get one:
http://aws.amazon.com/iot/button/
How can I get an AWS IoT Button?
AWS IoT Buttons are provided from time to time as part of AWS public events such as the re:invent conference as a “hello world” device to try out AWS IoT. We currently don’t plan to sell them. However, if you have a great use case for the AWS IoT Button and would like us to get back to you if buttons become available for sale, contact us at aws-iot-button@amazon.com