Hey everyone and I apologize for being late, I am sure some of these questions are from early March and some of the events.  So here are the questions.

Q: How big can a VHD drive be?
A:
The limit is 2 TB.

Q: Can you support ISCI San an Hyper-V?
A:
Well kinda, here is a good article that will hopefully clear up the confusion. Booting Hyper-V VMs off of iSCSI?

Q: Where can I find the Deployment steps and downloads?
A:
For deployment take a look at this site for lite touch deployment: Lite Touch Deployment Feature Team Guide

Q: Can RIS install Windows 7?
A:
Yes, although I have not tested it, Vista and 7 share similar deployment methods, you can find more info here: Windows Vista Deployment Enhancements

Q: Does WDS require AD?
A:
Yes, take a look here: Windows Deployment Services Getting Started Guide 

Q: Does WDS use TFTP?
A
: Yes, you can take a look at how it is used here: WDS TFTP Server

Q: Is there a detection tool for hardware assisted virtualization?
A
: Yes and here it is, Microsoft® Hardware-Assisted Virtualization Detection Tool