Face Detection is undoubtedly the must-have digital camera feature for 2007, with every new model offering some kind of system. Could GPS (Global Positioning System) based geo-tagging be the next killer application? Sony are already offering a GPS kit that’s compatible with most recent cameras, and Jobo are about to release a GPS unit that fits in the hotshoe of a DSLR. Companies at the recent PMA show in Las Vegas were demonstrating inexpensive GPS chips that could be fitted inside a digital camera, leading many experts to believe that this will be the killer feature for 2008/9. So we may all be able to plot our photographic routes on Google Earth or a similar service sooner than you think, and there will be no more wondering about where a particular photograph was taken. Will GPS-based geo-tagging be big, is it an exciting feature for you and something that you’d use a lot, or is it just another flashy way for camera companies to differentiate themselves from their competitors? Shout out now...

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