ForeFlight Mobile, one of the most popular chart viewing and flight planning apps for the iPhone and iPad, now offers georeferencing—a fancy term for showing where the aircraft is on approach charts and airport diagrams. The data for georeferencing has been in the software for some time, but not active because ForeFlight felt the internal GPS in the iPhone and iPad was too unreliable. ForeFlight’s co-founder, Tyson Wells said customer demand coupled with aftermarket GPS units from Bad Elf and GNS GmbH made this the right time for a change. In addition to position, GPS-derived altitude, groundspeed and track can be shown while viewing the approach plate. Meanwhile, ForeFlight’s leading competitor, WingX, is on the verge of some big changes of their own. More…