Hyper-V Program Manager
This has already been mentioned in a couple of places, but in case you missed it the upcoming Windows Server 2008 release candidate will increase a customer technology preview release of Windows Server virtualization.
So now's the time to make sure that you have 64 bit, hardware virtualization enabled systems ready for you to try it out on. I look forward to hearing your feedback :-)
Will it only work on hardware assisted virtualisation systems?
Usually, only a few people can try out the newest technology. Not every will prepare new hardware for new features I think.
Yes, it will only work on hardware assisted virtualization systems. Having said that any new server system purchased in the last year or so will meet the requirements specified above.