Larry Page using Android software and, by 2010, 17.2% of the handset market consisted of Android sales, overtaking Apple for the first time. Android became the world's most popular mobile operating system shortly afterward. Following a January 2011 announcement, Page officially became the chief executive of Google on April 4, 2011, while Schmidt stepped down to become executive chairman. By this time, Google had over $180 billion market capitalization and more than 24,000 employees. After Schmidt announced the end of his tenure as CEO on January 20, 2011, he jokingly tweeted on Twitter: "Adult-supervision no longer needed." Quartz organizational management reporter, Max
Marriott International demand system. On December 13, 2011, J.W. Marriott, Jr. announced he would be stepping down as CEO of the company, while assuming the role of executive chairman. It was announced that Arne Sorenson would be taking over as CEO as of March 2012. U.S. Republican presidential candidate Mitt Romney released his 2011 federal income taxes on September 21, 2012, showing that he declared $260,390 in director's fees from Marriott International, despite the fact that news was released on January 13, 2011, that he had already stepped down from the Marriott International board to run for president. His released 2010 tax