GPS Visualizer, the web app that lets you convert GPS data files to Google Earth KML while adding lots of customization, just got better. Writes Adam Schneider:
GPS Visualizer can now draw Google Earth tracks that are colorized by altitude, speed, etc. Unfortunately, GE only lets you assign one color to each placemark, so I have to do it by breaking the track into hundreds of individual placemarks collected in a folder — but it’s actually not too bad. (In Google Maps, doing the same thing is terrible.)
That should produce some stunning results for anyone who hang glides, hikes, or drives. You can even colorize according to your heart rate (!).