About Amazon Kindle Devices

The Amazon Kindle is an e-book reader developed by Amazon.com subsidiary Lab126 which uses wireless connectivity to enable users to shop for, download, browse, and read e-books, newspapers, magazines, blogs, and other digital media. The Amazon Kindle hardware devices use an E Ink electronic paper display that shows up to 16 shades of gray, minimizes power use and simulates reading on paper.

Several hardware devices support this platform, including a main "Kindle" line and a parallel "Kindle DX" line. The most recent Kindle device is the third incarnation of the main line, officially named "Kindle", but usually referred to as "Kindle 3". Kindle 3 was released on August 27, 2010. User reports indicate that the new display on the Kindle 3, with E Ink Pearl technology, is noticeably superior to that of prior generations.

The Kindle DX line features larger screens than the main Kindle line and is marketed as more suitable for displaying newspaper and textbook content. Amazon has also introduced Kindle software for use on various devices and platforms, including Microsoft Windows, iOS, BlackBerry, Mac OS X (10.5 or later, intel processor only), Android and Windows Phone 7.

About Amazon Kindle Devices

Content for the Kindle can be purchased online and downloaded wirelessly in some countries, using either standard Wi-Fi or Amazon's 3G "Whispernet" network. Whispernet is accessible without any monthly fee or wireless subscription, although fees can be incurred for the delivery of periodicals and other content when roaming internationally beyond the customer's home country. Through a service called "Whispersync", customers can synchronize reading progress, bookmarks and other information across Kindle hardware devices and other mobile devices.

In May 2011, Amazon announced that over the previous year, they had sold more Kindle books than print books.

Source : en.wikipedia.org/wiki/Amazon_Kindle