My new job involves prospection of base stations for cellular communications. I have to use topographic maps, GPS equipment and digital pictures. And the newton is a great tool for all these things!
Looking for GPS solutions, I found a discontinued program, MapPad. I only could find references to it in the web archive. Fortunately, it had the programs and a couple of sample maps. I made a serial key generator for it, everything will be on UNNA soon. I hope I'll find a way to make new maps looking at the code with ViewFrame.