Meet the Gemio Band: a smart wearable device that lets you express yourself on the go. It creates light effects that respond to music, movement, and people around you. You can send light signals to others. Gemio has light, motion, sound and proximity sensors.
The device comes with commonly used messages but you can create your own light signals. You can also change the band quickly by switching out tiles. 6 tile designs are expected to be available at launch. Yet another awesome Kickstarter project.