It happens a lot that we hear about advances in technology that take years or even decades to become products. Some never do. I was reading about HDTV in the late 1980s, but it was after 2000 that I first laid eyes on an HDTV set. When I bought my fourth hybrid car in 2010, I said that my next car would run on hydrogen. I bought another hybrid last year, and I have a reservation for a Tesla. The promise of OLED was that we could have millimeter thin TVs of any size, and that they would be cheaper than LCD because they could basically be ink-jet "printed" onto most any surface. Maybe that's still in the cards, but I've been waiting ten years.