Here is a door lock, Kevo that eliminates the need for a key. You can open or close the lock by simply touching it if you have the right key fob or an iPhone4s/5. Not only this, but you can have your friends and family get access to the premises if they have the iPhone and right app that is paired with this. The traditional keyhole and key is also provided just in case the batteries die at a time when you need them the most.
The Kevo operates on 4 AA batteries, and will warn you both on the door and through your phone if batteries need replacement. The product will be available for shipping by the end of October. Right now it is available only through pre-order and it will cost you around $219.
