The Kindle DX is the third iteration of Amazon's e-book reader. With the exception of its larger (9.7 inches) autorotating screen, native support for PDF files, and more expensive price tag ($489), its functionally is identical to the earlier Kindle 2.
While the backside of the Kindle DX is as nondescript as that of an iPod, it masks the unit's 4GB capacity (3.3GB usable). That's twice as much as the Kindle 2, and enough to hold 3,500 books (according to Amazon).
Newspapers, magazines, books, and personal documents are accessible on the Kindle DX. The unit also includes a full version of the New Oxford American Dictionary, so unfamiliar words can be looked up on the fly.