Finding your way without GPS

Google introduced a new "My Location" feature in version 2.0 of Google Maps for mobile that will help alleviate my map reading and orientation problems. It offers GPS-like positioning by using cell tower ID information and algorithms to approximate location. It's not as accurate as GPS (within about 1000 meters on average, according to Google), which is supported on less than 15 percent of phones sold this year. But, it's free, faster and consumes less power compared to GPS-enabled devices, Google said. Google makes a point that the location data is anonymous--the data is not personally identifiable but it does go into the great Google bit bucket to be mined. My Location is supported on most smartphone devices--unfortunately not on mine yet.