Why on earth do you need a keyboard to read a book?
Surely the display should occupy the whole front of the machine, and the keyboard slide out for the odd occasions when you need it?
I am quite keen on the idea of ebook readers, but I don't like the lack of an agreed, open source, format for texts (I don't object to copyright control, that could be done with a published standard in a number of ways). I really don't like proprietary standards. I don't need different specs to read books by different publishers.