It’s hard to imagine that taking your phone out of your pocket would ever be considered “too much effort,” but should that happen, there’s a device disguised as a necklace that can project new messages directly onto your hand, or the ground in front of you. While the prototype is actually the size of a backpack, the team hope to get the technology to a point where it can also be used to give directions, and perform other smartphone-related functions. The system would rely on specific gestures, each of which can be used to perform a different function. Theoretically, anything…