HP unveils revolutionary wireless chip.

"HP just developed a Grain-sized chip that could be attached to almost any object and contain almost limitless amounts of information... The experimental chip, developed by the 'Memory Spot' research team at HP Labs, is a memory device based on CMOS (a widely used, low-power integrated circuit design) and about the size of a grain of rice or smaller (2 mm to 4 mm square), with a built-in antenna. The chips could be embedded in a sheet of paper or stuck to any surface, and could eventually be available in a booklet as self-adhesive dots."