Amazon is not the only one. So have WSJ and Kobo. Here is the Ars article: http://arstechnica.com/apple/news/2011/07/with-pressure-from-apple-reading-apps-begin

Amazon is not the only one. So have WSJ and Kobo. Here is the Ars article: http://arstechnica.com/apple/news/2011/07/with-pressure-from-apple-reading-apps-begin-ditching-outside-store-links.ars http://arstechnica.com/apple/news/2011/07/with-pressure-from... Edit: wrote "and Kindle" instead of "and Kobo"