Originally Posted by
sudoshift
As far as the grade and speed extra goodies. How did you guys/gals come up with this? Is it a feature built-in to the camera or do you need some other "magic"?
Once you have the GPX / XML file off the GPS device, you can do whatever you want with it if you have some knowledge of programming. There are also commercial and free (open source) applications that enable you to do this some which have already been discussed in this thread.