And joy of joys, there are already
extremely anti-ebook authors out there using the study to justify their hatred of ebooks (while not showing an awful lot of comprehension about what the study actually said, or being able to tell the difference between eInk readers and tablets).
Well, I now know to stop ruining this author's career and not buy more of his books, since I'd have bought them as ebooks (he makes it very clear in the comment replies he doesn't want people to buy his books as ebooks since that is financially bad for him, but also, ebooks make you stupid!! see, this study says so!!).