Have you ever wished your phone could tap you when you had a notification, drag itself over to you on its own or touch you back? Researchers in France have developed a finger-like phone and tablet attachment that can do all of those things and more. Called MobiLimb, it's made up of five servo motors, an Arduino microcontroller and a sensor, and it can do a number of unsettling things that are straight out of nightmares. "In the spirit of human augmentation, which aims at overcoming human body limitations by using robotic devices, our approach aims at overcoming mobile device limitations (static, passive, motionless) by using a robotic limb," Marc Teyssier, one of the researchers behind MobiLimb, writes on his website. And to be fair, MobiLimb actually has some rather useful capabilities.