This is the future of international travel - I have seen it already on Aruba - no more stamps in the old passport - there you just scan your passport - have your photo taken and you are on your way - they even have an on line place to complete the immigrations form for entry so you do not need to do it on the plane.

Customs form for departure is also completed at a computer terminal, no hand written form since they have pre-clearance for USA bound passengers.