Another point. If they opt to let consumers copy their own cards without the issuing bank's permission, I'd be very surprised if copying the mag strip is not a

Another point. If they opt to let consumers copy their own cards without the issuing bank's permission, I'd be very surprised if copying the mag strip is not a very big violation of TOS. If they go the guerrilla route, they'll basically be asking for legal trouble. I don't like to be critical, it's innovative, but I think they'll have a tough time.