MobileMe customers with an iPhone enjoy a pair of great new features after installing iPhone OS 3.0. The first lets you log in to your MobileMe account and use Find My iPhone to locate your missing iPhone on a map. You can play a continuous sound — useful if you dropped it under the couch — or display a message on the screen. You can even initiate a Remote Wipe if you fear the worst. Want to learn more?
Read the whole story here: Now you can use Mobile Me to “Find My iPhone”