Dramatically different price point, but I've been using my Sony Xperia Tablet for exactly that. Completely submersible = NPR & email in the shower every morning. Admittedly, I take longer showers in the miserable winter of norther Vermont, so I like any excuse to stay under the hot water longer.
I could understand laying in a warm bathtub, but now long do your showers last? I'm normally in-and-out in less time than a typical radio song plays.
I would imagine one of my showers takes at least 10 minutes. I think if I'm really tired or cold it could take 15-20 minutes.
I am not a morning person.
I sometimes stay up to 15 minutes. I like the warm water. But then I usually take my waterproof notepad with me to jot down ideas or brainstorm stuff (relaxing shower works wonders for creativity).
I got trapped in Seattle a couple years ago after some flight cancellations some former students of a colleague put me up for a few days. They had a waterproof notepad suctioned to the wall of their guest shower and each morning I would draw out detailed diagrams of locks & methods of attack. I found it was a bit frustrating to get a good transfer onto the pages, but really liked the novelty of being able to take "shower notes".