Alongside the release of iOS 4.2 Apple has made Find my iPhone — previously a feature of a paid MobileMe subscription — free.
Find My iPhone (or iPad or iPod touch) helps you locate a missing device. The Find My iPhone app is a free download on the App Store and lets users easily locate a missing device on a map and have it display a message or play a sound. Users can even remotely lock or wipe data from a lost device to protect privacy.
Apple has posted an online guide showing iOS 4.2 users how to setup Find my iPhone for free.
