Now this is one extreme and sci-fi vision from Apple. A recent Apple patent application reveals its grand plans to empower a handheld to implement security measures based on user heartbeat, face, voice patterns and even behavior. So if your iPhone is stolen it might well detect unauthorized usage and explode (kidding!).
Imagine being able to track an iPhone thief with his pictures, call logs and GPS coordinates? Wiping data and backing it up remotely looks like a near future thing, but to see such advanced hardware and software in a handheld is miles away as of now. The future as we know, just got a little more geeky!