From a press release from Amazon yesterday…
the Kindle format has now overtaken the hardcover format. Amazon.com customers now purchase more Kindle books than hardcover books–astonishing when you consider that we’ve been selling hardcover books for 15 years, and Kindle books for 33 months.
While there is plenty of discussion online about the Amazon spin (See David Carnoy’s article at CNet for balance), there is no denying that they are experiencing healthy numbers.