I haven't been able to find this via Google. In particular, I am interested in reading about whether or not a Snow Leopard license is a prerequisite for installing Lion, and the new virtualisation ...
After upgrading Snow Leopard to Lion, can I reinstall the original Snow Leopard to a virtual machine?
If I upgrade my Snow Leopard to Lion, is it technically and legally possible to reinstall the original Snow Leopard into a virtual machine, which is inside the same, original, Apple-branded iMac? ...