EC2 Console
Amazon's Elastic Cloud Computing (EC2) service is a very intriguing idea: it allows you to scale applications almost instantly by booting additional instances of pre-defined virtual machines. What it does not have, however, is a decent management interface. The shell scripts that Amazon provides are not exactly well suited for management of large numbers of running machine instances. This project aims to bridge that gap by providing a GUI that allows users to manage running instances, images, keypairs, and groups associated with EC2.
Go to http://www.codeplex.com/ec2console
See also these related projects.