We were more than a bit saddened to see Microsoft Courier project go the way of the Dodo bird - it seemed like the perfect digital Moleskine complement for us on-the-go bloggers. While Kno's "digital textbook" may not be a fair compromise, weighing in at nearly 6lbs with dual 14-inch displays on either side, one still remain hopeful and entertain the thought of a "nano" version to come... someday, that is.
Technically speaking, you get a pretty nicely powered package. The Linux-based e-reader designed for students packs a 6 hour battery life while integrating a Tegra 2 processor, 16GB of flash storage, and both stylus and touch support.
Asking price is around $1000, which isn't too bad if you consider both screens are IPS and run at nearly HD resolution (1440 x 900). While it may feel like you're carrying a tank version of a "tablet" around, at least you'll never have to complain about lack of screen reading estate.
For an even closer look, check out Engadget's hands-on coverage of the Kno Dual-Screener over here.