Kno was there to show off their digital textbook platform. It's a dual screen Linux tablet with 2 14" LCD screens. It weighs in at 5.5 pounds, and has Bluetooth and Wifi. The reported price is "under $1k".
Battery life is 6 to 8 hours, and the CPU is Nvidia Tegra T20.
I'm going to pass on making the obvious comments about weight cost, size, and battery life. Instead I'm going to hold on forming an opinion until I know the specifics of the screen tech. I really hope that they're not using an old style LCD. That would be a killer, IMO.