Brian Harry, member of the VSTS team, announced today that the VSTS product group signed off on a Community Technology Preview (CTP) of the version of VSTS that will follow the forthcoming Visual Studio Team System 2008 release.  

“Yesterday, we signed off on the release of the first CTP for our Rosario release of VSTS.  Rosario, as you may recall, is the code name for the release of VSTS that will follow the VS/VSTS 2008 (Orcas) release.  We have not (and will not soon) be announcing anticipated timelines for Rosario, so for now you’ll have to be happy with getting your hands on the bits to play with :)”

Source: MSDN Blog by Brian Harry