I just finished watching a Channel 9 interview with David Chappell (you should definitely subscribe to the feed of his blog), who talked a bit about "Oslo" and the ideas, products and services around it. Obviously there is indeed a new server product coming as part of the initiative. At the moment it is called the "process server", having features like a "lifecycle manager", a hosting component for WCF and WF and a centralized repository, which uses a new DSL (domain-specific language) to define models, schemas and other types of entities. Looking at the timeline, David outlines a step-by-step release schedule starting with a new version of WF in the upcoming .NET framework code-named "4". He expects at least parts of the process server to be released shortly after that new .NET version and the according Visual Studio product.