Originally Posted by HarryT
They all use the SAME screen. The background colour of an eInk screen is very dependent on lighting condition; in bright light, the background will look almost where, in poor light it will appear a medium grey. There can also be considerable variation from one eInk panel to another.
No...I've owned all three at the same time, spent considerable time with them, in the same lighting conditions and room - they ARE different. Even in varying lighting conditions the qualities still remain. The nook was greyish, Sony whitest, and the kindle 3 creamish with popping blacks, and that held true in bright direct light as well as indirect light. Its not a negative to anyone....just, there are noticeable differences.