Hi ti all,
I want to share something with those ones who don't have a gps device but have a GPS on their cell phone. For the last two weeks i have been using Sportypal, it is a gps tracking/mapping application that use the internal gps from your phone. It has all the normal features as the other tracking devices, plus it has amaizing community service where you can share your tracks with the other members or just analyze your performances,. For free it's worth to give it a try. Only thing you need is to register on Sportypal.