Zviz is an application being developed by ILM. Currently in Beta Testing and soon to be released. If you see some info on this very interesting PREVIZ product please let me know.
Martin McEachern writes for Computer Graphics World.
His cool Computer Graphics World article gives us a little more info.
Bill Desowitz talks technology, convergence, The Force Unleashed and Star Wars: The Clone Wars with Richard Kerris, who recently left Apple to become CTO of Lucasfilm
VFX World article