[T-R]

I'd like to see this paired with an e-ink screen on the next Kindle. Turn on only the e-ink for reading, only the LCD for UI, or both to show highlighting and notes overlaid onto the text. They could use the touch screen to get rid of all those buttons, too.

[cma]

I think a better scheme would be having embedded OLED dots mingled in around the eInk microcapsules. Then you don't get the degradation you get with layering one thing over another.

[alok-g]

Interesting proposal, but impractical. LCDs are transparent as many others people have noted, but transmission efficiency is often as low as 10% (yes, some 90% of the light is blocked). See: http://en.wikipedia.org/wiki/Liquid_crystal_display_televisi...