
Motorola has teamed up with a company called VivaLnk to make a temporary tattoo that can unlock a smartphone, no PIN required. Slap it on your skin, hold your phone up to it, and bam — phone unlocked.
Who needs gestural passwords or face recognition when you can unlock your phone like a time-traveling space wizard?
So how does it work? It’s an ultra-thin NFC circuit, wrapped up in medical-grade...