Find My Friends
Find My Friends is a new iOS app that lets you find your friends immediately using Location Services. You can locate your friends as long as they approve it and give iCloud the permission to locate them for you.
There are two ways to locate your friends; you can locate them permanently as long as they give you permission, or you could invite your friends to locate them temporarily based on a period of time. After the period has expired, your friends' locations disappear automatically.
Find My Friends requires iOS 5 or later, and you need to download the free app on the App Store. Unlike any other feature on iCloud, you can only use the service with the native app and not from iCloud.com.
To permanently add a contact, tap on the + button on the top right-hand corner and enter your friend's Apple ID in the To field. You can enter a personal message and tap the Send button to send the request. Once your friend has accepted you request, you can locate him or her.
To temporarily add...