The argument over which party "invented" the fingerprint sensor is pretty silly. The idea of fingerprint based unlocking for electronic devices is nothing new and has been on laptops for years. Motorola's implementation of fingerprint-based unlocking on the Atrix was similar in concept to what Apple has done on the 5s. Both implementations place the sensor on the primary button used to wake up the device, which in Android's case is the power button, not the home button. The main difference is that 5s uses a sensor that is several years newer.
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