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Top notch GPS models

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Today, GPS is a beautiful thing. A receiver in your car can learn its own location from 24 government owned satellites overhead your tax money at work. You're guided to a destination with colorful moving maps on a touch screen and an authoritative voice. But good GPS models must fulfill three requirements. First, each must be tiny, self contained and battery operated, so you can take it hiking or biking. Second, each must display live traffic and accident data - and offer to reroute you as necessary. And finally, each must pronounce actual street names not just "Turn right," but "Turn right on South Maple Street." That feature makes an enormous difference when you're flying blind in a new town. Here are a few top notch GPS models: Magellan Maestro 4250 ($450): Like any gadget in a car, GPS receivers are a distraction, and therefore a safety risk. So it's amazing that speech recognition didn't arrive in these units sooner. On the Magellan, it