Here is my class with their new Kindle DXs. Notice the absence of heavy textbooks on the desks!
Unfortunately, while it was cool to carry around all of our textbooks in PDF format on our Kindle DXs, the pilot ultimately led to us not adopting eBooks exclusively. Simply put, many of our students just preferred the ease of printed books. eBooks may become the norm in the future, but probably only when everyone carries a laptop with them, and can access a second monitor for it in the classroom.