Iris for Scanning
Modern smartphones usually offer some kind of security option to let you into the phone. The iPhone has the a four-digit PIN-like passcode, Android phones have a swiping pattern, Windows Phone has a numeric or text-based password. Those work OK, but they're pretty hackable, and could well be improved by new technologies. Insidious and scary technologies. Here's the rundown.
At the PopSci mothership in New York, there are lots of reasons to take pictures of strangers who aren't expecting it. The crazy lady pooping on the L train platform at Union Square? The guy who walks around Fort Greene Park with two African grey parrots on his shoulder? The impossibly old man riding a unicycle over the (very steep!) Williamsburg Bridge pike path? All totally acceptable scenarios in which to pull out your phone and take a picture. But in the U.K., more than 8 per cent of people have confessed to taking illicit shots of... attractive people.
Android Fragmentation by Device
"Fragmentation," when applied to Android, which it often is, refers to the platform's tendency to branch off in all different directions from the original core operating system. Google releases a version of Android, and then the manufacturers, like Samsung and HTC, alter it: they add their own software skins on top, they add or remove software, they modify the way the camera software works or what the buttons do.