(AP) -- Amazon.com Inc. will release a larger - and more expensive - version of its Kindle electronic reading device that is geared toward periodicals and textbooks.
During a press event Wednesday at Pace University in New York, Amazon founder and Chief Executive Jeff Bezos showed off the $489 device. It has a grayscale screen that is 9.7 inches on the diagonal, up from 6 inches on the regular Kindle. The new Kindle DX also includes a QWERTY keyboard like the current Kindle.
The announcement comes three months after Amazon revealed a slimmer, updated version of the original $359 Kindle, which wirelessly downloads books. Some analysts have said the unit needed must-have content like textbooks to become more of a mainstream gadget.
Three textbook publishers said they have agreed to sell books on the device.
Amazon shares dropped $1.50, 1.8 percent, to $80.40 in morning trading.
©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Explore further: Amazon expected to lift wraps on large-screen Kindle