It's hard to believe that it's been almost two and a half years since Pixel Qi spun off from OLPC and promised to bring its dual-mode, power efficient display to laptops, tablets, and e-readers. For those who haven't followed our small obsession with the 3Qi screen technology (shame on you!) it promises the best of both worlds: full-color graphics in a normal LCD mode, but also the ability to turn off the backlight to morph into a grayscale, e-paper like display. And while we've seen it demoed at tradeshows
