Locksmiths and car thieves can both get excited over a new handheld device that electronically maps the inside of car locks and then provides the key code within seconds via USB cable connection to a computer. The key code, matched to the make of the car, allows key-cutting machines to churn out a replacement key. Popular Mechanics reports that the key replication only works for Ford vehicles so far -- news that may leave bemused expressions on the faces of Ford owners.