Wired Magazine just did a piece on Oscar Pistorius. It's unfortunate timing, really. He was just declared ineligible for competition in the Bejing Olympics. He's already a paralympic champion and was looking to be the first to crossover. The wording they used in the declaration seems...loaded:
"any technical device that incorporates springs, wheels or any other
element that provides a user with an advantage over another athlete not
using such a device"