Yesterday, we showed you the folding bike, but now we’ve got a great bike lock concept for any bike. The Halo Bicycle Lock (no relation to the game series) gets its name from its angelic security features, including a special design that creates a perfect circle when the lock pieces are connected. If the lock is tampered with in any way, a special embedded Eye-Fi will alert you via mobile text that something’s happening to it. Pretty darn useful, I say. Sadly, it’s just a concept right now, but this is one concept I sure hope becomes reality.