For all those apple heads out there.
I found two apps for the iphone which might be of interest to some folks.
The first is a walking/hiking recording app called Sprint GPS. It makes use of the inbuilt gps of the iphone to record your track speed, distance, calorie usage and altitude and plots it on google maps. It looks like it requires line of site with towers though. So it has its uses for training.
The other is Gaia GPS which requires line of site to down load tracks and maps. However once these have been loaded it seems like it runs as a stand alone gps system. You can download gpx files with tracks and maps and or scan your own paper maps and save them as gpx files and then upload to your iphone. I have not really got to grips with it yet or done any uploads of maps.
I don't believe that this will take the place of a gps system, but it has its uses. They are both available as free or pay to use apps.
If anyone has any additional info on the gpx file uploads to iphone I would like to know how to go about it, and if anyone has used these or other, it would make good reading.