Apigy has introduced the Lockitron, a combination hardware and app kit that replaces the lock on your door with an internet-ready version that allows users to lock and unlock their doors using their iPhone (and eventually other smartphones), even remotely. While utilizing a traditional key and keyfob system for backup, the system also offers an option where users can text or email a "virtual key" code to others who need to enter the house, enabling them to use the system as well. A near-field communication (NFC) version is also in the works.