I have a lot of latitude and longitude data which I want to map out and to be able to also incorporate other data sets (volts, amps and temperatures). So, for example, I could show my route on a map and the color of the line would change depending on the speed.
Anybody know of good software for this?
Not specifically a canned package, but what about using the Google Earth API? It looks as though you could customize whatever you need using the kml structure.