The texts now have the latest vehicle position as a link, like this-
http://maps.google.com/?q=52.4960,-1.4778

On most smartphones, the link can simply be clicked on to see a map.

The link contains the Latitude and Longitude, which is a way of describing any point on the surface of the earth.

The numbers can be entered here or into some Satellite Navigation systems

Latitide is a measure of how far north or south a point is with 0 degrees at the equator, 90 degrees at the north pole and -90 degrees at the south pole.	Longitude is a measure of how far east or west a point is. 0 degrees of longitude is the Greenwich Merridian, and negative numbers to the west and positive numbers to the east.