The biggest risk with keeping it on is probably your neighbour getting upset and disturbing the flight. On a recent flight we were encouraged to check that people sitting next to us turned off the devices and point it out if they did not. They also explicitly said that ebooks was included in the things that have to be turned off.
The Nook STR have a text on it when turned off telling that it is turned off. I actually failed to turn off my Nook on the first flight since it was new and in a cover and I had not yet learned how the button worked. On the next flight I did turn it off.
I also think that people regularly forget to turn off iPads. I have forgotten a couple of times.
|