Sun Microsystems (JAVA) used the recent SunLabs Open house to provide lots of details about Project Caroline, its new platform for small and medium sized software-as-a-service (SaaS) providers. Sun's Rich Zippel has blogged about the event and posted links to the documentation Sun has published about Project Caroline, including two hours of video of technical presentations and live demos of the service.
Project Caroline is designed to helps software providers develop services rapidly, update in-production services frequently, and automatically adjust their use of platform resources to match changing runtime demands.