Need directions? Are you good at getting lost? Then GPS is just the technology you&#8217;ve dreamed of, and <i>GPS For Dummies</i> is what you need to help you make the most of it. <p> If you have a GPS unit or plan to buy one, <i>GPS For Dummies, 2^nd Edition</i> helps you compare GPS technologies, units, and uses. You&#8217;ll find out how to create and use digital maps and learn about waypoints, tracks, coordinate systems, and other key point to using GPS technology. <p> Get more from your GPS device by learning to use Web-hosted mapping services and even how to turn your cell phone or PDA into a GPS receiver. You&#8217;ll also discover: <ul type="disc"> <li>Up-to-date information on the capabilities of popular handheld and automotive Global Positioning Systems <li>How to read a map and how to get more from the free maps available online <li>The capabilities and limitations of GPS technology, and how satellites and radio systems make GPS work <li>How to interface your GPS receiver with your computer and what digital mapping software can offer <li>Why a cell phone with GPS capability isn&#8217;t the same as a GPS unit <li>What can affect your GPS reading and how accurate it will be <li>How to use Street Atlas USA, TopoFusion, Google Earth, and other tools <li>Fun things to do with GPS, such as exploring topographical maps, aerial imagery, and the sport of geocaching </ul> <p> Most GPS receivers do much more than their owners realize. With <i>GPS For Dummies, 2^nd Edition</i> in hand, you&#8217;ll venture forth with confidence!