Sidestepping lockscreen codes and fingerprint scanners -- and without any new hardware demands -- KDDI has unveiled a new palm authentication app that takes advantage of the high-resolution camera on its Android smartphones. Scanning in tandem with the flash, we gave it a try on a HTC J, here at CEATEC in Japan. After a brief setup, which involves positioning your hand to fit between some red markers, the phone was soon calibrated to our hands. Then, after locking the devic