Ghostmapping means using "GPS Cloak" to keep your mobile phone's true location private without having to drop off your social network's shared map.
Bob, a Blackberry user, also uses UberTwitter (which incorporates location information with the popular Twitter social network)and allows his followers to know where he is located at any given 'tweet'. Bob decides to "ghost on the grid" and go to the mall. He uses "GPS Cloak" for ghostmapping. He cloaks his true "Ghost Lōc" location at the mall and changes it to the local fitness center, and then updates his Twitter that he is headed to the gym to work out. All of his followers will see that his phone's GPS says he is at the gym while he enjoys privacy at the mall!