Think your PDA is only good for keeping addresses and to-do lists? Magellan’s latest GPS Companion ($199) turns any of the m500 series hand-helds into a full-color, easy-to-use Global Positioning Satellite receiver. Detailed maps can be downloaded into the device, along with recommendations for nearby restaurants and hotels. Navigating as you travel with routes and turn-by-turn directions is as easy as touching the screen. Find more great gadgets at