Amazon will start shipping a GSM-based wireless version of its Kindle e-book to US and international markets on 19 October, and it is taking orders from today.
The online retailer has also cut the price of existing Kindles in the US by $40 to $259. The wireless version, which will be compatible with most mobile phone networks, will sell for $279.
Users in more than 100 countries will be able to download a book wirelessly in less than a minute, said Amazon founder and CEO Jeff Bezos.
UK readers will be able to download books from the Kindle Store, subscribe to newspapers and magazines, save and read personal documents, and read from their own library on Kindle's six inch electronic ink screen.
The US Kindle Store had more than 350,000 books, including 104 of 112 New York Times Bestsellers, for $9.99 or less, he said. It had added more than 75,000 books in the last five months, and was starting to sell Lonely Planet guides from today.
Users could buy single copies or subscriptions to more than 50 newspapers, including Financial Times, The Times, The New York Times, The Wall Street Journal, USA Today, The Washington Post, Le Monde, Frankfurter Allgemeine Zeitung, and the Shanghai Daily. Magazines on Kindle included The Economist, Newsweek, Time, The New Yorker, Foreign Affairs, The Atlantic, Forbes, Fortune, PC Magazine, and The New England Journal of Medicine.