In recent months, portable auto GPS navigation systems have been challenged in their market by smartphone applications that mirror much of the functionality of the standalone units. Now an attack is being launched from another vector, thanks to a new iPod gadget announced by a major player in the take-it-with-you auto nav arena. The gadget, made by Magellan, is a device for the second-generation iPod touch or iPhone that mounts on the dash or windshield of a vehicle and contains a GPS receiver, amplified speaker and noise-canceling speakerphone.
