Joined: 21 Mar 2007
What VM's really need is for graphics manufactures to setup and provide an interface that a VM can tap into directly, similar in principals to VT extensions on newer CPU's
Still not going to happen soon
Actually that's what VT-d is for. It's not done by the GPU, but it does allow switching direct access to physical devices between VMs (and/or the host OS, in the case of hosted VMMs) in a secure manner.