The General Availability (GA) release of the AWS SDK for Node.js is now available and can be installed through npm as aws-sdk. We have added a number of features since the preview release including bound parameters, streams, IAM roles for EC2 instances, version locking, and proxies.
via Amazon Web Services Blog: AWS SDK for Node.js – Now Generally Available.
With the availability of the AWS SDK for node.js it is now possible to do things like add S3 storage functionality directly into your node.js app. Adding features of AWS to the real time interactivity of node.js will just make it more attractive as a platform.