Troll Touch has announced the immediate availability of its TouchSTAR touchscreen enhancement for Apple’s 20″ and 23″ HD Cinema flat-panel displays. TouchSTAR enhancements are mounted internally so that the only modification visible to the user is the USB cable that exits the back and plugs into one of the USB ports. “While the 20″ Cinema display supports video resolution of 1680×1050 and the 23″ HD Cinema supports a video resolution of 1920×1200, Troll Touch’s PSR1 USB touchscreens supports 4096×4096 points of touch. Calibration is quick and stable. TouchSTAR enhanced displays can be used with a bare hand, stylus, gloved hand or prosthetic device.”