Quest just released this cartoon explaining desktop virtualization, their products, and how they fit with Microsoft. It's pretty fun!
My only beef with it is that in the very first sentence, they imply that desktop virtualization = VDI. :( Also I noticed that when they showed vWorkspace plugging into multiple hypervisors, they showed a four-piece puzzle but only actually plugged in ESX, Hyper-V, and Parallels. (Yet they also support XenServer, so why didn't that fit in Slot #4? Do they really not like Citrix that much?)
But other than that, fun stuff! This is actually a pretty effective way to explain desktop virtualization in general. Nice!