17 cool gadgets that tease the future

Turing Video's Nimbo security robot isn't going to stop a robbery. But it can summon human security or police officers who can.

The two-wheeled robot is designed to ride around indoors, such as a retail store, and its built-in video cameras can monitor for unusual activity. It can also mingle with customers or work in tandem with a human guard, who can step on it like a scooter.