Garmin targets Waze and Google Maps with Viago, a $2, upgradeable GPS app

Hoping to compete with free navigation smartphone apps like Google Maps and Waze, once-mighty GPS giant Garmin announced a low-cost, turn-by-turn navigation aid for Android and iPhone. Called Viago, the new app costs just $2 and includes a host of powerful features that don’t require in-app purchases. Garmin features such as current speed, speed limit