If you don't have a map app on your smartphone, download Google Maps. Now. The free mapping app gets more powerful and indispensable with every update. It can predict your location using GPS or cell tower triangulation, and use that fix to find businesses near you and calculate directions for driving, walking, even taking public transit. You'll be able to click to call locations, and send details to friends via text.
Map layers include traffic flows and points of interest on Wikipedia as you switch between satellite and map views. If you're into Google Latitude, a social-networking … Read more