I began tu put gps traces because I finally got my i-Blue747 :-) gret gps receiver even if it is my second one so I have not so much knowledge to judge...
Anyway I am tracing the route we did on 19-06-08 by bike with the people of palermociclabile!
I uploaded also a little route my sister did to Mondello just to see how much good precision the mtk chip has under trees :P
Now I have to understand how can I translate those traces to something usefull...