I use the Kindle app on my iPad for reading. It's great because I have a built-in dictionary, so I don't have to get up to get the dictionary if I need to look up a word (which is only a small inconvenience, of course, but hey, a little more convenient is better than a little more inconvenient). I also can easily highlight and copy text, as well as attach notes to certain sentences or words. It's an all-around more convenient way of reading.
Of course, I'll always like physical books, because they have their advantages as well, but I do most of my reading on Kindle now. I highly recommend it.
