I use the App "runtastic" for running and biking. It can record GPS tracks and I normally have an extra GPS module on my iPod. The weather was so bad this day though that I didn't see a chance for a good GPS signal and left the module at home. Imagine my surprise when I saw that the App was still able to track me quite nicely.
I then just uploaded the logged track and was able to take a closer look at it on the App's homepage (runtastic.com), where it also added the map information. This is just a screenshot of the full-screen-mode of said page.