Where is like the Swiss army knife of GPS apps. Using your location, Where gives you real-time information on cheap gas, weather forecasts, movie showtimes, restaurant recommendations, traffic conditions, and news headlines.
This great free app also lets you browse the Yellow Pages and the Yelp directory, and it even finds the nearest Starbucks for you. Just call it your new personal travel guide.
Yelp has an Android app for its service that's similar to Where; it can add information from the directory on top of real-time images from the phone’s camera (as Wikitude and the Layar Reality Browser do).