How to use Garmin 60CSx with Ubuntu

Under Ubuntu, to be able to use this GPSr with non-privileged users, it is required to add the script
containing the following parameters:
   SYSFS{idProduct}=="0003", MODE="666"

This GPSr can use maps coming from OpenStreetMap that are available for free for every location of the planet. Maps can be downloaded from openstreetmap's wiki.