New GPS-enabled devices deliver information when and where you need it.
After two years of talk, location-based services are set to debut this year. But make no mistake -- these are baby steps. Telenavigation's Telenav service ($7 per month) is the first. Call in your desired destination with a Nextel GPS-enabled phone running Telenav and it gives you turn-by-turn voice directions. The service piggybacks on the FCC's e-911 initiative, which gives cellphone carriers until 2005 to enable their networks to detect the location (to within 300 feet) of 911 callers. Nextel, Sprint PCS and Verizon are already compliant.