The lab rats at KDDI R&D have come up with a new way to authenticate identity in lieu of a standard password. Dubbed "the arm swing authentication system" the technology analyzes the unique motion you use to swing your phone to accurately detect your identity. According to the researchers, the muscle structure, motion patterns and length of an arm are all used to correctly identify a user with a failure of just 4 percent.
The company also hopes to also use the technology to allow customers to amass an entire set of personal gestures that would be used to open a number of applications and phone functions. No word on when this will hit the commercial market, but it will definitely make for some interesting interface dynamics (read: geeky jazz hands) once independent developers get a hold of this technology.