As of yesterday there is a new post on their blog,
http://notionink.wordpress.com/. He says he is "leaving for Taiwan and getting good news for all of you", not sure what that means but I'm assuming it has something to do with the screens. No mention though of flash compatibility which was what I though was the prime hold up.
The linked video (which compares the Pixel Qi to the iPad) is pretty impressive.
I'm not holding my breath but I am getting a bit more optimistic for it.