This navigation system displays your position provided from your NMEA-capable GPS receiver on a zoomable map.
The map file is auto-selected depending of the position and prefered scale. Speech output is supported if the festival software is running. The maps are auto-selected for best resolution depending of your position. GpsDrive is written in C with use of the GTK+ graphic toolkit and runs with Linux and FreeBSD.
This program supports all Garmin GPS receivers with a serial outputs.