Kindles is the #1 bestselling item on Amazon.com for two years running. It's also the most-wished-for, most-gifted, and has the most 5-star reviews of any product on Amazon.com. And now Amazon.com is introducing a new generation of Kindle.

The all-new Kindle has a new electronic-ink screen with 50 percent better contrast than any other e-reader, a new sleek design with a 21 percent smaller body while still keeping the same 6-inch-size reading area, and a 15 percent lighter weight at just 8.7 ounces.

The new Kindle also offers faster page turns, up to one month of battery life, double the storage to 3,500 books, built-in Wi-Fi, a graphite color option and more. The Kindle comes with free 3G wireless.

Amazon is also introducing a new addition to its family of portable reading devices, with the Kindle Wi-Fi. Readers who don't need the convenience of free 3G wireless can now enjoy the new generation Kindle for a lower price of US$139.

The all-new Kindle and Kindle Wi-Fi are now available for pre-order, and will ship to customers in over 140 countries and 30 territories beginning 27 August.

Kindle offers a large selection of the most popular books. The U.S. Kindle Store now has more than 630,000 books, including New Releases and 109 of 111 New York Times Best Sellers. Over 510,000 of these books are U$9.99 or less, including 80 New York Times Best Sellers. Over 1.8 million free, out-of-copyright, pre-1923 books are also available to read on Kindle.

Kindle lets you buy your books once and read them everywhere, including on Kindle, Kindle DX, iPad, iPod touch, iPhone, Mac, PC, BlackBerry, and Android-based devices. Amazon's Whispersync technology syncs your place across devices, so you can pick up where you left off.

With Kindle Worry-Free Archive, books you purchase from the Kindle Store are automatically backed up online in your Kindle library on Amazon where they can be re-downloaded wirelessly for free, anytime.