The iPhone5 concept by Zeki Ozek suggests using a fingerprint scanner instead of home button. You can assign your fingerprints for opening apps. Swipe your finger twice for background working apps and of course use your fingerprint for NFC payments and app store purchases. It looks similar to the iPhone 4 except squattier (sic) – cute chubby little thing. I’m 100% sure the real iPhone 5 won’t integrate any of these features but that brings up the question, why aren’t any of the major smartphone makers using biometric sensors?