Amazon’s Deal of the Day is this Garmin Nuvi 57LM GPS Navigator System at a deep discount for only $79.99. This sophisticated little device has the latest navigation features such as: spoken turn-by-turn directions, lifetime map updates, direct access, and speed limit displays. Additional features include:  Foursquare – Search millions of additional new and popular restaurants, shops and more with Foursquare Garmin Real Directions – Garmin