Sony last upgraded its CS1 GPS image tracker around this time last year, and as PMA 2009 draws ever closer, we're seeing the outfit quietly introduce that unit's proper successor. The GPS-CS3KA takes on a slightly more modern design and promises compatibility with nearly every Cyber-shot digital still camera and Handycam camcorder out there. Essentially, the utility here is the same as before -- keep it on your person while shooting, then let the Picture Motion Browser software sync up dat
