On July 21, 2011, the day before Joe Brown began his 1.5 years as editor-in-chief of Gizmodo, he wrote 16 moving and influential words. "Fuck Natural Scrolling. This Is Bullshit. Yours truly, a concerned Lion user. Returning to unnatural scrolling."
Portable computers have looked like hinged books for long enough. The D-Roll concept looks back even further than the codex to the humble scroll for its inspiration. Plus, you can carry it like a purse!