If you haven’t activated Apple’s free Find My Phone app on your iOS device, DO IT NOW! Though it’s not totally guaranteed you’ll get your mobile device back, the chances can be pretty good, such as what happened recently to a man who had his iPad stolen by a flight attendant and was able to recover it using the app.
If you’d like to protect your iOS device, follow these instructions: How to use Find my iPhone to track down a lost or stolen iPad.
NOTE: The Find My Phone app not only works on iOS devices, but on Apple iMacs and laptops too!