Anyone who relies on their bike to get around, especially in major cities like New York and San Francisco, knows that bike theft is a huge problem. Current locks can be ineffective as theft deterrents, since thieves have found numerous ways to beat them. And good luck finding your bike once a thief gets his hands on it. But it doesn’t have to be that way. We now have the technology not only to digitally deter bike thieves, but also to be able to track a bike via GPS if a thief manages to take it home.
http://techcrunch.com/2013/10/28/lock8/