Last week I went on vacation to Angel Fire, NM (a ski valley outside of Taos) with my family. I went on a lot of hikes and brought along my GPS unit. Check out what a little code to transform the log file into KML brought out. Install Google Earth, and then open the KML of my trip. Make sure you have 3D terrain enabled. You can see some of the pictures I took (sorry—cameraphone only) in the exact location where I took them. I'll make the code available to transform from Mapopolis to KML upon request (or when I polish it up a little first).
Edit: By request, here's a screenshot. So now if you're Mike and you don't want to install Google Earth, you can still get a feel for the end result.