There are multiple waterproof cases for all sorts of phones (including the note) to I have a friend that takes his iPhone in the hot tub to play music.
All of these devices also have e-reader apps.
I'll just add to this that Amazon got me to buy a kindle @ a $9 price point.
If I take a book into the bathtub, and drop it, the book may very well be salvageable. At worst, I'm out the price of the book.
If I take an e-book into the bathtub, and drop it, I've likely just hosed a very expensive e-reader or tablet.
Has anyone designed an e-reader which properly handles the "reading in the bathtub" use case?