Now that GPS apps like Tom-Tom are showing up on the Apple iPhone 3GS, I'm wondering if I really need to buy those expensive apps when Google Maps that's included with the iPhone does such a great job? I know I can get directions, but can I get turn-by-turn directions like I would in a handheld GPS?...

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Ever wonder where your kids go during the day? Or perhaps you're curious how many miles you travel, point to point, in a typical week? Heck, maybe you're the suspicious type and want to know where your spouse drives the car while you're working? All of these questions can now be answered by devices called GPS tracking systems that combine the geolocation capabilities of a GPS with a rudimentary recording system and a simple computer...

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My Dad is trying to convince me that it was former US president Ronald Reagan who created the GPS satellite network that powers all the nifty handheld GPS navigational devices we have nowadays. I think he's full of it. What's the truth?...

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