I never heard of Quantum Torque, did you? Well, their website says that “Quantum Torque is a independent Australian internet shop which aims to provide components and products that can be used for robotics and embedded electronics projects”. The picture above is a ‘cball Infrared Ball Sensor’ - 8 x infrared photodetectors arranged in a 180 degree semi-circle. It has I2C interface, and their site has NXT-G and RobotC examples. Other products on their site is a ‘iball’ (1 x infrared photodetector with NXT socket) and an NXT breakout PCB board. Check their site for details.