Kindle book sales greater than paperbacks

Amazon is riding the popularity of the Kindle, announcing that ebook sales are now outpacing those of paperbacks. The company never divulges exact sales numbers, and states that it now sells 115 Kindle books for every 100 paperbacks sold. The margin between Kindle books and hardcover books has now widened to 3-to-1.

The number of Kindle devices sold by Amazon is never discussed, other than the company has sold "millions" of them. A statistic I would most like to see from Amazon is how many of these Kindle books are being sold for devices other than Kindles. Amazon has wisely released Kindle apps for every major smartphone platform and the iPad, raising the number of prospective customers for ebooks into the tens of millions. I suspect more Kindle books are being sold for non-Kindle devices than the genuine reader from Amazon.