Good Gear Guide
Android apps: 9 best, free social networking choic...
Not unlike foursquare, Gowalla's location-based social check-in app helps you share the places you go with friends and other contacts. And like foursquare, you collect Gowalla "pins" and rewards based on the types of places where you check-in. A Gowalla "Passport" keeps track of everywhere you've been, logging states and countries you may visit. How do you choose between foursquare and Gowalla? Determine which services is being used by more of your friends...or just use 'em both.
Android apps: 9 best, free social networking choices