Amazon announced the addition of  Kindle DX: Amazon’s 9.7 to the Kindle family today with the following features… Features Slim: Just over 1/3 of an inch. Library: Holds up to 3,500 books, periodicals, and documents. Display: 9.7″ diagonal e-ink screen with 16 shades of gray for clear. Auto-Rotating Screen: auto-rotates from portrait to landscape as you turn [...]