Connected Exercise Bike
I would enjoy an interactive exercise bike and/or treadmill that could integrate with sites like http://www.gmap-pedometer.com so you could actually run or bike the course of any route you can create. Its resistance and elevation would change based on ground covered. This would allow the user to gauge one’s ability to handle a course that is not easily accessible, or try to tackle something like a Tour leg or the Ironman, rather than prepackaged (and not very realistic) courses. Then you could also compare times to winners, or see where you might fall in the pack of a competition, if you are planning on taking part in a triathlon, bike race, or marathon.