Here's an incredible story of how author Sean Power retrieved his stolen 17" MacBook Pro from 800km away, using Prey and Twitter.
Sean's bag containing his laptop, some money and other important items was stolen. Three days later, he received a report from Prey noting the computer's location and a picture of the alleged thief, which was taken by the MBP's camera. Soon the man in custody of the laptop launched Skype from a bar, and Sean was able to learn his name.
Sean then took to Twitter, explaining the situation to his followers