Digital Tatoos can Unlock Moto X

"It's another step in making it easier to unlock your phone on the go and keep your personal information safe. An average user takes 2.3 seconds to unlock their phone and does this about 39 times a day-a process that some people find so inconvenient that they do not lock their phones at all. Using NFC technology, digital tattoos make it faster to safely unlock your phone anywhere without having to enter a password,"