Notion Ink Adam hands-on [Video at bottom] (slashgear.com)

I think this has a bit more content and conceptual ideas that I found interesting.

Very interesting. Just coming back from 2 days @ MacWorldExpo, the place has the hype of iPad - companies are selling iPad cases, but iPad not to be seen anywhere. I wish products like this come and make it big, and pose a serious challenge to iPad.