Anyone who has an ebook reader with Wi-Fi is asking for trouble.
It will be a sad day for me when my Sony PRS-300 reader fails to start. This reader has no Wi-Fi.
What is that I hear you say? Turn off the Wi-Fi on the reader? Please, how naive do you think I am?
"The only controls available to those on board were two push-buttons on the center post of the cabin -- one labeled on and one labeled off. The on button simply started a flight from Mars. The off button connected to nothing. It was installed at the insistence of the Martian mental-health experts, who said that human beings were always happier with machinery they thought they could turn off."
- Kurt Vonnegut, The Sirens of Titan