AFAIK there is no "contract" or such. The guys at Farsight bought one of Noah's machines (the VirtuaPin) with a real DMD. It arrived about a week before one of the gaming expos and they hacked together support just in time.
Needless to say everybody loved it :)
Pinball Arcade has portrait support that plays really well already on a cab, but Farsight has said the plan is to add really 3 screen cab support in the future.
My money is we see it just before Timeshock lands, but heh, I'm a cynical skeptic ;)
Having said all that "VirtuaPin is coming is Australia" has been the line since at least last July, and that skeleton site got thrown up once Infinity Amusements (
http://infinityamusements.com) started trading and hasn't changed since. Just a co-incidence I'm sure ;)