I often get asked for examples of using Hyper-V for large scale applications.  Well, the Microsoft Windows Server Custom Engineering announced that is helping build the world largest Public Key Infrastructure (PKI), using Windows Server 2008 R2 Hyper-V, managed with System Center Virtual Machine Manager.  This PKI will issue hundreds of millions of certificates for Certificate Authorities around the world.  Check out the article to see the details and a couple screenshots!  Also, don't forget to follow my twitter: edwinyuen