from fuel cell cars and electronic paper displays
Fuel cell being mainstream? I don't think they will ever fully takeoff as a main form of transportation, but something similar will be developed shortly. At least I hope it will. As for Electronic Paper displays, this has already happened in a sense. The Amazon Kindle is about as close as we are. As far as it being as thin as paper, that's an entirely different story, but we're close. I give it ten years.
