One major feature which the iPhone 5 misses, and many other manufacturers implement is NFC. Who knows why Apple didn't implement NFC this time round, but it was a stupid move. The Calypsokey wants to solve that problem by NFC into a case which you put your iPhone into. This will enable you to perform actions like opening doors by simply tapping the case on the lock. However this is only a small step forward compared to the NFC capabilities which you can find in Android phones that work with the software too. Still, it's a pretty neat way to go keyless.