See also:

• Science: Earth Sciences: Geomatics: Global Positioning System  (44)

• Delorme - Earthmate GPS and Solus Pro Palm Software
• SkyHawke Technologies - SkyGolf GPS is a golf GPS system designed to give real-time distance information on any golf course in the world. It fits on the back of the Palm. There is also a Visor version that slips into its expansion slot.