Isn't that what the inflight magazine and the free newspapers are for?
Although recently I watched a guy who had his ereader, a text book (opened to a complicated diagram) and a note book all balanced on his lap. He read and wrote notes the entire time.
I can only assume the FAs didn't notice the ereader and just saw the text book and note book. Or else they took pity on him and allowed him to work/study in peace!
I'm pleased to report that we didn't crash!