Isn't there a Starbucks around here somewhere? GateGuru knows. Download this great tool for frequent fliers and enter your itinerary to receive your terminal and gate, arrival and departure information, estimated wait time for TSA security checkpoints, and real-time flight status updates. If you have a long layover, the app also features maps and tips for navigating unfamiliar airports, as well as food and amenity options that are customized according to your arrival and departure terminals. GateGuru is available for iPhone and iPad, Android and Windows Phone.