ElasticStack has been working on an open stack of software to help service providers and organizations start up their own clouds since 2008. The company has seen some success in Europe and recently (June 2010) entered the U.S. market. ElasticStack is offering a turnkey set of tools that includes a brandable control panel and billing system, cluster management API making it possible for customers to customize how an ElasticStack Cloud is seen by users and a KVM-based virtual server environment. In essence, all a service provider or large company needs to do is add their favorite industry standard systems, stir and they have their own cloud computing environment.
http://www.zdnet.com/blog/virtualization/elasticstack-wants-to-power-your-organizations-cloud/3603
Open Source Cloud News J 