GreenTea writes "Some of the latest mobile phones in Japan come with motion sensors that let users detect motion or play action games like those on the Nintendo Wii console. The D904i from NTT DoCoMo, Japan's top mobile carrier, contains a tiny motion sensor that detects shaking and tilting, company spokesman Nobuyuki Hatanaka said. 'The software supports three main types of motion: shake, rock and roll. Shake can be used for actions such as rolling dice and shuffling MP3 decks. Rock interprets right, left, up and down gestures to generate traditional cursor-style user input commands. Roll offers joystick control by responding to tilting motions used in navigating games, maps or Web pages.'"