My boss (the conehead :-) and head Sales guy made this product video five years ago, when we were a hungry startup.

http://www.youtube.com/watch?v=r94dY-kKvw0

Today's press releases are a little more polished:

http://blogs.msdn.com/b/windowsazure/archive/2013/09/26/announcing-general-availability-of-windows-azure-multi-factor-authentication.aspx

http://weblogs.asp.net/scottgu/archive/2013/09/26/windows-azure-new-virtual-machine-active-directory-multi-factor-auth-storage-web-site-and-billing-improvements.aspx

http://channel9.msdn.com/Blogs/Windows-Azure/Windows-Azure-Multi-Factor-Authentication

:-)