Even Mary Poppins didn't have a bag this smart. OK, so maybe it doesn't have unlimited space inside, but NUA Robotics' intelligent suitcase isn't something you'll easily lose. You may lose sight of it but it won't lose sight of you. Combining camera sensor and Bluetooth connectivity, this robotic suitcase not only detects and identifies its owner, it also follows him or her around, navigating through streets and walkways to keep up with its human master. As long as its master doesn't go up the stairs, that is.