Google 2011, "The Globe and Mail" reported that Google bid $900 million for 6000 Nortel Networks patents. On August 15, 2011, Google made its largest-ever acquisition to date when it announced that it would acquire Motorola Mobility for $12.5 billion subject to approval from regulators in the United States and Europe. In a post on Google's blog, Google Chief Executive and co-founder Larry Page revealed that the acquisition was a strategic move to strengthen Google's patent portfolio. The company's Android operating system has come under fire in an industry-wide patent battle, as Apple and Microsoft have sued Android device makers such
Google Play Books Clancy also stressed that Google's ebooks would be readable on any device, indicating the open nature of the platform. It would also make ebooks available for bookstores to sell, giving "the vast majority" of revenues to the store. Having already digitized 12 million physical books at the time, including out-of-print titles, Google offered a "far greater" selection than Amazon and Apple did. In June 2011, Google introduced an affiliate program for ebooks, allowing websites to earn commissions by referring sales to the Google eBookstore. Google eBooks became listed on the Google Affiliate Network. In March 2012, Google revamped all of