The Pioneer Corporation of Japan has developed a wearable computer with a display you can wear on your sleeve. A prototype jacket was shown in Tokyo last week. The wearable color display is composed of active-matrix organic-electroluminescent (OEL) film, a material which was developed four years ago by a variety of manufacturers. These screens are readable from almost all viewing angles and in bright sunlight (which is why many car stereos now use OEL screens). Pioneer’s wearable computers with sleeve screens are being designed to for use in the medical, firefighting, and farming professions, but I expect this ‘smart’ clothing will be purchasable by you in not too many years.