InControl Solutions is making what they claim to be the world's smallest input device. The tiny force sensor, called Piccolo Point, is just 10mm square. It is made from a tiny sensor mounted on a pc-board beneath a plastic disk that acts like a joy-stick. The entire assembly is 4mm thick and costs less than $1. While designed to be used in place of a mouse on cell phones and PDAs, the ability of this sensor to provide force sensitive, 360 degree data might make it useful on the bottom of robot feet or the tips of grippers.