This is the most exciting development since Ballard Fuel Cells in the late 90's.  

http://www.chfca.ca/resources/chfca-blog/is-the-fuel-cell-industry-really-near-a-tipping-point-

"there’s no question the industry has had a history of over-promising and under-delivering, and it continues to pay dearly for miscalculations. German automaker Daimler AG predicted a decade ago that 100,000 fuel-cell car engines would be produced annually by 2005.

Even less ambitious targets—but no less unrealistic—have been missed. Ballard told Time magazine in 1999 that fuel-cell vehicles would be economical by 2010. PricewaterhouseCoopers predicted in 2001 that sales of the vehicles would reach one million a year by 2010.

Of course, we know how that turned out. Around mid-2000 the government and auto industry began shifting attention to battery-powered vehicles. The media lost interest, tired of reporting on yet another pilot project or hydrogen-powered bus sale."