We have been asking for a better way of testing these CTP that Microsoft has been pushing for the past few years (that we asked for) so we can just get in, test away. About a year ago, many people started asking for virtual environments that are setup with the IDE changes or .NET changes in the CTP. I just noticed last week, MSDN Subscriptions now has disks available for September CTP of Orcas. This is awesome. Now I can start playing with the tools without installing on a side laptop or creating my own virtual environment for them.
MSDN Team, keep this up!