There is more news available about VS2010. My last post announced a launch delay due to performance issues.
Visual Studio 2010 Release Candidate will now be available in February 2010.
Public Release Candidate
In order to make sure that these fixes truly address the performance issues reported, and to help validate them across the broadest number of scenarios and machine configurations, we’ve decided to ship another public preview release of VS 2010 and .NET 4 before we ship. Specifically, we plan to make a Release Candidate build available in February that everyone will be able to download and test. It will be a public build and include a broad “go live” license that supports production deployment.
[ source ]