3. Apple iPhone 3G
It doesn't handle email as well as the cheapest BlackBerry, and as a telephone, it's no better than most cell phones. But this is the gadget that launched the era of mobile computing, and what an epoch that promises to be! With 10,000 free and paid applications, tethered to on-board GPS and utilizing an array of sensors that include a motion-sensing accelerometer, what can't the iPhone do? Price: $199
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