Any smartphone worth its salt these days comes packing an integrated GPS receiver that allows you to pin-point your location on, say, a Google Map. But, GPS mapping on a smartphone has a critical Achilles Heel – the handset needs an active wireless data connection to pull down map data. Without map data, the GPS hardware is basically useless. That is, unless you have a Windows Phone with NaviComputer installed. The NaviComputer app downloads GPS maps from your favorite mapping service, allowing you to map your position without a data connection. More of this gadget »