You can view your current location on the map indicated by a pin icon. The surrounding circle is the current level of accuracy of the GPS signal. If you are recording, the route is displayed by a green line and start and finish by more pin icons. You can zoom in and out with the plus and minus buttons.
You can customize the map appearance by pressing the options cog icon. One option is the Open Cycle map layer that displays a network of cycle friendly routes, roads and points of interest.