Fun? Yes, probably, but there clearly are security issues involved, so think carefully about whether you really want the world to know where you are. Letting Facebook know that you are miles away from your home could act as an open invitation to the more unscrupulous to pay an unwelcome visit to your home. Many users of Twitter's similar geotagging feature have also expressed concerns about letting potential stalkers know of their whereabouts. Fortunately, if you favor privacy, you can disable some or all of the geotagging features, and LifeHacker provides some great instructions on how to do this. Now that you can share what you want to share, have fun with it!