>>> most new Android phone come with a free nav by google
I guess you can never have enough information...
http://www.pcworld.c...u_the_creeps.html
[...]
"Regarding location information specifically, GoogleÂs privacy policy states: ÂWhen you use a location-enabled Google service, we may collect and process information about your actual location, like GPS signals sent by a mobile device. We may also use various technologies to determine location, such as sensor data from your device that may, for example, provide information on nearby Wi-Fi access points and cell towers.Â