Want to innovate? More importantly, do you want what you design to actually be built, and used by real people? Amos Winters, an engineer from MIT, makes a great case for the value, and power of user-centered design in this TED talk where he presents his under $200 off road wheel chair.
Such a brilliant case study! It would have been perfect for our book--Interactive Design: An Introduction to the Theory and Application of User-centered Design. Maybe we can include it in the next printing. ;-)