Page Flips are Better than Infinite Scroll
designdare.com
designdare.com
However, infinite scroll in Bing's image search provides a more enjoyable experience than using Google's paged image search.
I'd say it's one of the form options (http://craigmod.com/journal/ipad_and_books/) that designers for an iPad should get to choose. Do you want your book to scroll or flip, or leave that up to the reader?
For example, a book of long poems may work well to scroll through each poem, but flip between different ones. The innovative thing about a digital screen is that it de-couples length of a text from the need to flip the page.
I am reminded of Malcolm Gladwell's talk about tomato sauce. Some people like chunky. Some people like plain.
But I agree that for the book format, page-flipping should be the default and is more reader-friendly than an endless scroll (as long as the page flipping animation is non-annoying and fast).
In this age of push notifications, continuous Twitter feeds and the like, I think it is always a welcome return home to the visceral feel of reading an engrossing book page by page.
So I knew exactly what the author was talking about when he was extolling the benefits of paged interactions!
I think a very nice aspect of reading on a touchscreen with drag-to-scroll is that this doesn't tend to happen. It makes things feel continuous and cohesive rather than chunked.
Even the articles diagram shows a horizontal scrolling example that would make reading easy. One page per screen. Done with that page? Scroll to the right. That's it. You could even have the scroll snap to the next logical page.
You might call that paging, but it's not. Paging in this context is simulating flipping a page.
It's not a prerendered animation and turns at the same speed as you move your finger. I find the experience to be as good as a paper book and significantly better than apps with preset animations or a screen refresh.
It looks like the iPad is going to have a swipe-to-flip interaction. I'm wondering if I'll like that as much as touch-to-flip.
For example, a manually-positionable 'pagemark' you could use if turning away from a block of text, or automatically-added lines/shading which capture where you've scrolled to so far (with intelligent updating based on time lingering at certain positions, or reversals of scroll-direction).