Nice article. I would have to (reluctantly) agree. I had great hopes for ereaders but after using them for over 7 years now, I find them useful only for essentially linear reading (which I still do a lot of, so they
are greatly useful for me in that respect). However, textbooks (or other serious nonfiction reading) are something I never have any luck with no matter what new ereader I switch to in the course of time
.
Having said that, it is
nice to have a searchable PDF available for when you just want to find something, so reference books are particularly useful on ereaders.