nice find ! the interface looks really fast. i'm surprised though because i had supposed they were using the wacom tactile screen (underneath the e-ink level) since we always see them using a stylus, but the screen seemed very reflective, as if the tactile layer were on top...
the only problem with those salon videos is there is so much background noise i think i could only hear about 1/3 of what the guy was saying. i did hear that you can add / use whatever dictionary you want (yay !), and they also said that it should be available for sale around june, at a price point less than the sony 700 (which is 400$). of course, that could easily mean it will sell for 390$...
definitely one to watch though. if the touch screen can also be used to turn pages, and will accept input from fingers as well as stylus for basic actions (page turn, menu selection) it could be a very interesting competitor for the 700.