I am not sure whether or not I read faster on the eReader, but certainly I read
more. Generally, I tend to read a couple of books at any time, and switch back and forth between them. In pbook times, when I was tired with non-fiction, and the fiction book would be somewhere in the bedroom (or worse -- lost

) I'd move on to some other activity.
Now that I have all books I am reading in the same device, switching is pushing two buttons and I can continue without having to get up. (I have to admit that, since I got my second eDevice I have stopped reading sometimes because the book I wanted was on the other device that was in the bedroom (neither has been lost -- so far

)).