If you'd like to give it a spin, simply download and install Fedora and use the GUI admin tools to create a new virtual machine.
Thanks again to Dan Walsh, Dan Berrange and all the developers who helped with input and the heavy lifting work of completing the userland code. It still amazes me how fast things move in FOSS.
As mentioned in my last+1 post, Dan W will be talking on this topic at the upcoming LinuxCon.
Further developments in this area are already underway, and you can expect to hear about them in the coming months—see the talk slides for possible hints.