It would be nice if devices had the ability to limit the GPS accuracy for all applications. Something that would allow them to return circular (Spherical?) regions that are defined to fall on a LAT/LON boundry so it doesn't place you in the center of the circle. Have the lowest region be exact LAT/LON, then 100 meters, 1km, 10km, 100km and off.
This would only be helpful if the device itself did it to prevent companies with no common sense from doing this.