Google has released Latitude for Apple's iOS. The new app runs on iPhone 3GS, iPhone 4, iPad, and iPod touch (third and fourth generation). It takes advantage of the multitasking in iOS 4 to run in the background and continuously broadcast your location.

The app has been available for some time as a layer for Google Maps on Android, as well as a separate web app, but now it's been ported to work as a native app on iOS. Google has added some privacy controls, but other than that the functionality is still the same: being able to share your location with others. Here's the official feature list and a video that explains the app's purpose:

  • See where your friends are
  • Share your location continuously with whomever you choose
  • Contact friends by phone, text message, or email
  • Control your location and privacy

Google Latitude is available now from the App Store in over 15 languages and 45 countries; if you don't see it yet, check back tomorrow as it takes a while to propagate through the store. The search giant also took the opportunity to reveal that more than 9 million people actively are already using Google Latitude on Android, BlackBerry, Symbian, and Windows Mobile smartphones.