Recent patent fillings by Apple that AppleInsider has dug up point to the company adding several new methods of insuring the security of its devices for users. The new filings cite biometric authentication methods that would excite Ethan Hunt -- including installation of a hidden sensor behind the screen that would recognize the user's fingerprint when touched, and / or a front-facing camera for retinal recognition. The filing also suggests further possibilities, such as the device being capable of recognizing the user's voice, or collecting D
