Written by I just installed the Windows 8 Preview today. I was very interested in what sort of windows features that is available and see what I found: 
It seems that Hyper-V is a feature you can enable in Windows 8. This is great. Mine is greyed out since I am running Windows 8 on a Virtual Box VM and this does not meet the requirements. It states that my processor does not have the virtualization features. And that’s true since I am inside a VM.
I like the looks and feel of Windows 8. Looks like a great improvement compared to Windows 7.
If you are interested in the preview, it can be found here:
http://msdn.microsoft.com/en-us/windows/apps/br229516
Cheers!