Sitting at home, and checking in on Foursquare as though you are somewhere else, just to claim mayorship, or to steal it from someone else? More people have been doing this than you think. So, the team at Foursquare has added a GPS fix that will not allow you to receive points, or steal mayorships if you are not actually at the location you claim to be at. While they have stated they are never going to take away the ability to check in virtually anywhere at any time, they do want to prevent people from wrongfully claiming and stealing mayorships, and earning points for checking into locations when they are sitting at home all comfy cosy. [via foursquare blog]