One reason I love the Kindle, more so than the iPad, is that on the Kindle you can't do anything else but read. It's the best, because it does the least. It doesn't even show a clock.
Growing maturity is marked by the increasing liberties we take with our travelling. . . we made the discovery (some people never make it) that real books can be taken on a journey and that hours of golden reading can so be added to its other delights.