Very interesting. The Fuji just became a much more flexible lens. I had the AbelCine/IBE e/UMS mount system installed last year on my Canon 17-120 so that I could use it not only as a PL mount on my F55, but EF on my C300, as well. Although I do get data through the eUMS EF mount, the system costs roughly four times what the Dulcos kit does, too.
I wonder if he has a "dumb" mount in the works for the Canon?