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In a statement, Bezos singled out the Kindle 3G with Special Offers, a $139 device that operates on 3G wireless networks and is subsidized by advertising, as the best-selling Kindle. Amazon didn't break out sales for the Kindle 3G with Special Offers, which was introduced in May.
Revenues for the quarter, which ended June 30, hit $9.9 billion and the company predicted it would break $10 billion in Q3. Amazon's net income fell 8% to $191 million, but investors cheered the report, prompting a 12% jump in Amazon's stock price in after-hours trading.