Sources: Microsoft [MSDN Blogs], Univ. of Maryland [background]
quote: Fuel cells have the potential to be fundamentally more efficient than any sort of burning
quote: Early products that used transistors may have been sold at higher prices
quote: That's exactly the point I was making...that while transistors were initially expensive, they fell quickly in cost and obviously had superior performance. In other words, don't write off new technology just because the initial cost is high.