Williams Pace Calculator - Portable pace calculator that performs road, track and heart rate calculations for runners of all abilities. - http://www.pacewear.com
WeightVest.com - Offers vests to promote muscle increase. Lists features and testimonials. - http://www.weightvest.com/
Pace Band - A wristband which lists pacing split times for marathoners. A variety of desired finish times are available. - http://www.paceband.com/