An XML registry which stores the Ruby data type as well as the value

EC2 in 3 steps: step 1. register the AWS account details in the XML registry, step 2. launch the EC2 instance, step 3. Publish the status of the instance using SimplePubSub.

The SimplePubSub gem is a messaging broker which uses Eventmachine + websockets.

Inspired by SimplePubSub and uses DRb instead of WebSocket.