The platforms we officially support are VMware vSphere, VMware Workstation, and Virtualbox. VMware is by far and away the major player and undisputed 500 lb gorrilla in most Corporate networks.
And Virtualbox, it's free and runs on every platform. Windows, Mac, and Linux.
When it comes to virtualization in the Cloud however Amazon is the powerhouse of choice. So when running in the cloud we support Amazon. We go where it's safest to opperate and where the best support is. In the cloud
that's Amazon. In your server room, that's VMware.