Here’s a concept device that James Bond would be proud of. The HOLO2.0 concept computer was designed by a French designer, and is designed to make computers more portable, but can also double up as a fashion accessory for the fashion-conscious folk. This concept device seems to be able to emit holographic images, and also emit sound and vibrations to alert you (if needed). If you’re not comfortable wearing a bracelet, then it still looks very cool in your pants pocket, just remember not to sit on it.