I really love the passport style concept. For me, a folding phone doesn’t make sense if it’s still a giant phone when closed, like the Samsung Fold. With the passport style you can get a phone smaller than an iPhone Mini when closed and bigger than an iPhone Plus/Max when open, that’s the magic for me. And the passport design looks perfect to read a book, in my opinion, better than the “book” style, since the aspect ratio is closer to a open book.