1. Great!
2. Using the latest iOS (and thus, Safari).
3. I was just using your suggested demo book. You might want to replace it with one that works. It's interesting to me that the functionality would depend in some part on the book. Why is that? Are they not all the same sort of ePub?
Nevermind, I'm so used to reading in another language on my phone that, when I went to look up a word in your app on my laptop, I forgot I need to right-click, not just highlight the word...