that reminds me the debate that VHS would kill a cinema thing or radio - live artists... never happen, probbaly will not do...
paper books may eventaully become more like a hobby than a basic standard way of reading, but personally i doubt it... they will always be here no matter what course technology will take...
i personally love books, the paper ones, even if I read an ebook (and I like it) I always buy a paper book just to have it on my shelf... nothing can bit the sound of page being turn, the touch, the smell...
e-readers will be here as long as guys like us will support them by demanding and purchasing... what and how they will look and work in couple of years, time will tell... exoperience shows us that the future can surprise us in many ways