Google have released an API for Google Latitude. Google Latitude is Google's location sharing service that let's you share your location and keep a location history. The new API lets you build applications using your location data and the location data of anyone who is willing to share that data with you.
Google have suggested a few ideas of the kind of applications you could build with the API:
- Thermostats that turn on and off automatically when you’re driving towards or away from home.
- Traffic that send alerts if there’s heavy traffic ahead of you or on a route you usually take based on your location history
- Your credit card accounts to alert you of potential fraud when a purchase is made far from where you actually are.
- Photo albums so your vacation photos appear on a map at all the places you visited based on your location history.
Via: Official Google Mobile Blog