Wow, interesting. I loved the touch screen on my Nook STR but I returned it because it just didn't do some things as well as my K3. If there's a K4 touch, with the best of both the STR and the K3, well, I'll be a happy reader.
Also interested to see what their tablet is going to look like. I'm mighty tempted by the Toshiba Thrive. But I really can't justify the expense.