I'll have a manicure and an upgrade please.
Geeks have made Fingernails that store personal information:
"I don't like carrying around a large number of cards, money and papers," Hayasaki from Tokushima University told Optics.org. "I think that a key application will be personal authentication. Data stored in a fingernail can be used with biometrics, such as fingerprint authentication and intravenous authentication of the finger."
Fantastic!
