there's apps to make our phone a short-range metal detector, a radio, a gaming platform, an e-reader. you can control your computer from it, find it when its been lost or stolen, do just about everything except babysit, taxes (not sure about this one, actually), and tapdance. but is there a biometric security app? the unlock pattern can be determined from the trail your finger leaves on the screen, so id love if it would only unlock when my fingerprint is recognized. is there an app for THAT?