Chuck England has just recently posted the sources for MPF for Projects on CodePlex. If you're interested in creating your own project systems for Visual Studio 2010 Beta 1, this is the place to start. And, for those of you wishing to port your project systems from VS 2008 to 2010, the sources will give you a good idea of what types of changes will be necessary. There have been several requests for a Beta 1 version of this component, so I hope you will find it useful.