From the Amazon press release:
Amazon.com, Inc., (NASDAQ: AMZN) today announced that Stieg Larsson, author of the internationally bestselling Millennium Trilogy, has become the first author to sell over 1 million Kindle books and is the first member of the new “Kindle Million Club.” The “Kindle Million Club” recognizes authors whose entire body of work has sold over 1 million copies in the Kindle Store (www.amazon.com/kindlestore). Customers can buy the three books in Stieg Larsson’s Millennium Trilogy from the Kindle Store, and read them everywhere–on their Kindle, Kindle DX, iPhone, iPod touch, BlackBerry, PC, Mac, iPad and Android devices.
Is there any estimate of how many p-books that Larsson has sold via Amazon? In many ways, he’s an excellent test case because he is an internationally popular author, and Amazon is the most international-friendly of the US retailers.