Posted: 03/11/2013 2:40 pm EDT Updated: 05/11/2013 5:12 am EDT. MSNBC's Tamron Hall just blew every other cable news host on television out of the water, because Tamron Hall has something they don't have: a theme song by Prince.
For most vehicles, the windshield suction mount places the GPS device within the driver's peripheral vision, keeps the speaker close to the driver's head for better hearing of spoken directions, and also places the touch screen within an arm's reach.
GPS devices are positional speedometers, based on how far the receiver has moved since the last measurement. Its speed calculations are not subject to the same sources of error as the vehicle's speedometer (wheel size, transmission/drive ratios).