... is that fantastic apps like these are made for it. In a great example of 'augmented reality', the Nearest Tube app, made for Londoners, uses the built-in GPS and compass to show you where the nearest subway lines are relative to your location and as you tilt the phone up, down and around, it superimposes bubbles representing the nearest stations with information like what line and how far away over live video of what's in front of you (provided by the iPhone 3GS video cam). There's one for the New York subway system too (pictured).This is the kind of ingenious new use for smart phones that just a short time from now we'll wonder how we ever did without.
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