On Oct. 29, Ubuntu Server Edition 9.10 will be made available. It features Ubuntu Enterprise Cloud, an open source cloud computing environment based on the same application programming interfaces as Amazon EC2. More here

The server software’s list of new features is topped with Ubuntu Enterprise Cloud (UEC) as a fully supported technology. UEC is the umbrella name for several cloud technologies, including the open source Eucalyptus project. Canonical, the commercial sponsor of the open source Ubuntu OS family, collaborated with the Eucalyptus community to fully integrate that core technology and then tweak it for Ubuntu server performance, according to Gerry Carr, head of platform development for Canonical.