Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Eddress - An address system for the digital age
LockOnMe - LockOnMe is a location-sharing app, displaying targets and associated Points Of Interest on maps & fun radars.
Locate - Locate allows you to easily find your friends and family from your iPhone, iPad, or iPod touch.
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Glintter - Add your favorite addresses and keep them within easy reach