Garmin has just announced its first turn-by-turn navigation app for iPhone, StreetPilot, as well as its full lineup of new smartphone applications for both iPhone and Android. Garmin also revealed several new mobile applications — including StreetPilot for iPhone, Garmin Tracker, myMechanic, and My-Cast Lite. Garmin Tracker: Available soon for iPhone and Android, the free Garmin Tracker App works in [...]