an user asked the support to explain how to use a gpx file generated by
http://itunes.apple.com/us/app/gps-ston ... 56344?mt=8
, I suggested 2 products and I did a Youtube video tutorial, if you want to watch it
http://www.youtube.com/watch?v=2LUDnsyInLc
please post any of the comment or improvement you could suggest.