I posted a blog entry and getting a few hits. So, I assume a lot of people are asking the same question. Posting on DUG might help a few more out there.
http://dynamicsnavax.blogspot.com/2011/04/how-to-run-ax2012-hyperv-on-virtualbox.html
ps.
I would like to move my blog or cross post here. If Erik/David can get a blog started for me. [:)]
Thanks in advance.