A newer version of GPS4PPC is available here: http://www.basic4ppc.com/forum/open-source-projects/5208-gps4ppc-v2-0-a.html This application includes a couple of tools you can use with GPS and / or with navigation. It supports: - Converting coordinates between Lat / Lon and UTM grids. - Converting coordinates between different datums and different formats. - Calculating the distance and course between two coordinates. - Using a GPS device it can show the present position, speed, and course (digitally and visually) in different formats, datums and grids. - It includes an on screen large numpad so there is no need to use the smaller soft keyboard. The setup file can be downloaded here: http://www.basic4ppc.com/files/GPS4PPC.zip The source code is attached.