3Qi is going to have 3 modes:
1. A very low-power, sunlight-readable, reflective E-paper mode
2. A full-color, bright, conventional LCD mode
3. A low-power, basic color transflective mode !!
So the 3Qi will also offer color in low power mode for transflective use!! (transflection I think means surrouding light intensifies the perceived brightness on the color screen.) Perhaps a light sensor can be situated next to the screen, to dynamically change the backlight intensity according to the surrounding light.
I think that perhaps that E-readers with the 3Qi may just as well be built like clamshell Tablet computers, with a full keyboard either staying behind the screen when in E-reader or tablet modes, or covering the screen when closed for example in the bag. And perpendicular to the screen like a laptop on the table to input text and browse the Internet and anything you would do with a real laptop. 3Qi basically would turn the Kindle DX type device into a fully fledged laptop, or turn every netbooks into E-ink like E-readers.
Pixel Qi is launching a 10,5" and a 7,5" (OLPC XO-1 sized) model within the next to months according to
http://www.wired.com/gadgetlab/2009/05/pixel-qi/
I have an XO-1 right here and have been updating
http://olpc.tv for the past 3 years. I think Mary Lou Jepsen's XO-1 screen is amazingly awesome and a million children in developing countries are enjoying it right now every day at school and at their homes with their families.
An improved E-reader mode (more contrast, even better visibility), a color transflective mode and a higher quality full color mode would be fantastic. On top of that a 10,5" model good for the high volume commercial netbook markets, and even touchscreen capability.