We created an app for Schwinn Fitness that acted like a computer desktop treadmill. Placed in the corner of the screen, it tracked how far a person moved their mouse during the course of a day – which was translated into miles and calories burned. It also enabled you to set fitness goals and email your achievements to friends. I created the interface for the tiny thing.
It was for Windows only, so I never got to see how many calories I burned during a typical day of pixel pushing.