One of the best ways of retrieving a lost or stolen iPhone is through the “Finds My iPhone” service. Many users think this is only an application and if they didn’t install it or it wasn’t installed at time of loss they can’t use it. That is definitely wrong. Although, its a great plus if the Find My App is on the device and been set up properly theres still a chance you can track down your iOS device

Many users jailbreak their devices for the sole purpose of this ability. After the device has been jailbren user will need to install MyWi7. This tweak cost $19.99 and is available on ModMyi Repo. This may seem like an astronomical amount but I can assure you this $20 bucks is much less than what Verizon or AT&T would charge for tethering.