Thanks for the insight; I had heard about hydrogen fuel cells as far back as 2002, but only in a very theoretical sense (plus I was in middle school back then..

Thanks for the insight; I had heard about hydrogen fuel cells as far back as 2002, but only in a very theoretical sense (plus I was in middle school back then...). They definitely do look promising; my guess regarding why there hasn't been much hype around them is that (per Wikipedia) they've been prohibitively expensive until rather recently (in 2002, hydrogen fuel cell cars were estimated to cost $1mn, $300k in 2009, etc)[1]. That being said, it does like it's approaching cost-effectiveness in the near future. [1] http://en.wikipedia.org/wiki/Hydrogen_vehicle#Fuel_cell_cost http://en.wikipedia.org/wiki/Hydrogen_vehicle#Fuel_cell_cost