Driving around in an unfamiliar place on an empty stomach is never fun. But before you pull into the McDonald’s drive thru, check out the Zagat 2010 America’s Restaurant Guide for your GPS, $29.99, a complete guide to restaurants that installs directly to your Garmin navigation system. The trusted paper back Zagat guide you know and love now comes complete on a SD card with all the features from the book such as restaurants based on price, decor, service, and quality of food. The SD card plugs into your nuvi or zumo Garmin GPS and quickly installs 20,000 of the top rated restaurants in 50 major U.S. cities and regions. What’s great about the guide is that it rates restaurants based on what you find most important; whether it’s decor, service, or cost. Within the nav system, you can save or favorite particular restaurants so it’s easy to revisit them or get turn-by-turn directions to the actual restaurant, rather than trying to remember that little hole-in-wall you ate at three years ago when passing through Reno.