RichesseGPS is a small Geocaching navigator for your PDA. It allows you to approach caches very closely.
Some time ago there was a lengthy discussion as to just what makes a rating and precisely how to write a calculator to give at least a decent approximation of what a given cache should be rated. This GCRS is the product of that discussion... and it works!
LoadMyTracks is a program for loading GPS information from GPS receivers to the Macintosh. It will communicate with GPS devices from many manufacturers to send and receive data. It can also be used to translate data between the popular GPX and KML formats. The software provides support for Waypoints, Routes, Tracks and additional data that may vary by device.