UR by Stephen King
I can never resist a new Stephen King and this one was even more intriguing because it was written for the Kindle and you can only read it on the Kindle. I think he just wanted to write a Kindle book. The main character, Wesley, purchases a Kindle. His is pink and they only come in white, but he doesn't pay any attention to that little oddity. But it comes with new books written by authors long dead and newspapers that tell the future. Nifty little item until you read where someone you love is going to die and you try to change the future to save her.