Comparing to TechEd 2007, it's been improved a lot, say the registration is so much better, and all the flow is very smooth.
I just want to suggest you to send down more Microsoft product manager to hear what the customer think of their previous product. Like I used Virtual server 2005 R2 for awhile, but I still want to feedback to Bryon that what I like and expect in the new Hyper V.
But, all the virtualization session I attended and enjoyed them very much.
See you in TechEd 2009.