The iPhone cracks itself if siri perceives it as stolen. Before you go why siri why, self destruction is activated only if you have enabled the iphone unlock error security feature on the concept iPhone 5.
After 3 strikes, Siri radio quickly does an iPhone data transfer to your iTunes; and goes onto decimate all your information on the phone. You are notified on iTunes, where the iPhone data recovery is now available only to you, as it should be.
If you cant have the iphone, NO one can!
The question is not whether iPhone -- Will it blend? but iPhone -- Will it destruct?, if stolen. Go Siri!