So tell me again how one makes Bitcoins out of thin air. Just to be clear, I'm talking about Bitcoins here, ones that can be exchanged via the block chain.
The blockchain becomes too big to be handled by usual PCs. In future we may need some special services that will prove that particular bitcoins are legit. Of coz the most trustful service will be provided by TBF. And it will gain ability to create faked bitcoins. As noone will be able to make reverse-engineering of Bitcoincard, then noone will be able to change the service used by such cards. A lot of room for manipulations here.