never heard of it, is it only sold in NY or everywhere throughout the USA and / or the world? Its a good idea, but I am betting it would have a hefty processing fee attached to it in order to cover the costs of getting it circulated properly and available for people to buy. Of course if it doens't have the convenience to buy factor then its not much use.

actually come to think of it, do you think people would go out and buy one of those cards at the shops where they are less anonymous than thru a cc or phone billing transaction at home?