What About E-books With Two Displays?

Teleread has an interesting question: “e-books, two screens or one?”. To put things in context, we are talking about letter-sized pages here. My take is that one such screen is good enough. I don’t really buy the argument that having two screens side-by-side (like an open book) would make reading any “better”, while doubling the volume and the weight of the device. Finally being able to hold the e-book with only one hand (and the coffee in the other) is actually very cool.