Well, the 2012 Olympics are about to begin, and one of the more interesting stories concerns South Afircan runner Oscar Pistorius and his carbon-fiber legs. http://io9.com/5928715/will-oscar-pistoriuss-prosthetic-legs-give-him-an-unfair-advantage-at-the-2012-olympic-games
This, however, is only the beginning. True, we've had glasses and hearing aids for decades now, but technology is advancing faster and faster. A woman in the Netherlands received a titanium lower jawbone this spring - and it was manufactured on a 3-D printer. The bionic age may finally be at hand!
Thoughts?
...for further viewing: