All fingertips will be linked to a specific credit or debit card, and funds will be deducted automatically upon a successful scan. I sure as heck hope that there is some sort of pulse detector in there, too, just in case some maniac decides to cut off the fingertips of a very, very wealthy person to use that to scan. How about stealing thumbprints from others? It is not as though that was not done in the past before. Still, the PayTango is the effort of a team of developers and programmers from Carnegie Mellon University, that comprises Christian Reyes, Brian Groudan, Kelly Lau-Kee and Umang Patel, so kudos to them for this genius product that hopefully, will see action worldwide one day.