Lately stores like Home Depot display a fine array of locks that are "smart" that don't require a key at all.  It seems that we are heading towards the day where we don't have keys in our pockets and purses anymore.  

In this test 12 of the 16 locks that were tested were easily "hacked," and that is very unsettling.  Its easy to be impressed by the new technology but how are you supposed to know if its hack-proof or not once you decide to spend $200 on one?  They may have to evolve a bit more before like driverless cars.