Excerpt: I bought this originally for my mountain bike as a simple bike computer. What I've found is that it works really well tracking back my routes when on foot as well. It is really stripped down as far as on screen features are concerned, however if I keep the unit on in my pocket and upload the data to the computer later it gives the whole route in detail that a full function gps would do. Works really well kicking out great GPX and KML files!
Excerpt: Before I got into GPS I used cyclometers to tell me how far I had gone on my mountain bike, which was very helpful when a trail description said something like “watch for hidden trail on left after 3.2 miles!” They worked surprisingly well, although dealing with wires, strapping a magnet to the spokes and calibrating the whole setup was way too complex.