Amazon has so far kept very quite about Kindle sales. But it has just released a categorical number. Amazon has sold “more than 1 million Kindles per week over the last three weeks”. Now, that’s Kindle readers and Kindle Fire (its iPad wannabe) combined. But if those are new-user sales and each of those buys an average of just five ebooks in 2012, that should boost ebook sales by 15 million copies or so. Which would be nice to see in the UK market, where in my experience sales have collapsed compared to the ever-rising sales coming from the USA.