One of the great features of Mobile Me – and now iCloud – is the ability to use remote tech to find your iPhone when you’ve lost it. But for whatever reason, you may decide to get rid of that feature.
To do so, open the Settings app on your iPhone, then head to Mail, Contacts and Calendars. Once you’re there, you should see the Mobile Me option. Click on it.
There, you’ll see the ability trigger Find my iPhone on and off. If you ever turn it off, you can just go back to this page and turn it back on.