The ShareKey app uses NFC to lock and unlock doors (Photo: Fraunhofer SIT)
Mobile phones have already swallowed up the average Joe's diary, compact camera, watch and Walkman. They're working on replacing the wallet as well – so the next logical step is to go hunting for the last remaining pocket-dwelling device they can gobble up in their mad fury of convergence – your keyring. Smart and secure door access apps and hardware have already sprung up using Bluetooth and Wi-Fi – now there's ShareKey, which uses NFC (near field communication) and aims to be the most secure of all systems.
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