The Reserve Banks will run the newly deposited cash through highly sophisticated automated machines that count it, detect counterfeits, and destroy bank notes deemed unfit for re-circulation.

FORBES: Printing Money, Literally

The unfit notes are destroyed and the notes deemed fit for re-circulation are added back into Reserve Bank inventories to be paid out to banks in filling future orders.

FORBES: Printing Money, Literally

Maybe the most interesting part of this is that two V3 variants are also topping 2009's most-recycled list, so they're definitely getting taken out of circulation -- it just might take a few years yet before you don't know anyone that uses one, that's all.

ENGADGET: Nielsen stats: a lot of iPhones out there, but also a lot of everything else