To celebrate the one year anniversary of its PowerMate USB multimedia controller, Griffin Technology has announced the release of a Limited Edition Black PowerMate. Like the original brushed aluminum model, the device can be used as a volume knob, or programmed for any number of other uses such as a jog/shuttle wheel for movie editing or a scroll wheel for long documents. The Limited Edition Black PowerMate is priced at US$45 and is available exclusively from Griffin.