Hyper-V Program Manager
People have been asking for a while for a way to add a virtual machine configuration file (.XML) directly to an instance of Hyper-V without first needing to export and import it. Well, Robert Vierthaler beat me to the punch and blogged about this a little while ago: http://blogs.msdn.com/robertvi/archive/2008/12/19/howto-manually-add-a-vm-configuration-to-hyper-v.aspx
Some key things that I want to point out about this approach:
Any thoughts on perhaps making it possible to move Hyper-V machines around in future - without limitations such as having to use exactly the same paths? It would be very handy to be able to dump a directory into an archive and extract it elsewhere.