Any Palm OS hardware
Palm OS 3.5
GPS receiver
memory card slot

Log your path with a GPS receiver and then view it in Google Earth.

This freeware application will connect your PDA with a GPS receiver to collect location data from it. All coordinates (points) received from the GPS device will be saved to a file of your choice on a memory card. The path consisting of these points is saved in the KML format, which is easily readable e.g. by Google Earth.

To open a KML file created with Path2KML, simply drag it onto Google Earth.