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
Daniel Hesse AT&T's long distance services. In May 1997, he became Chief Executive Officer of AT&T Wireless. In 1998, Hesse oversaw the launch of AT&T's Digital One Rate. From March 2000 to June 2004, Hesse served as CEO and chairman of Terabeam Corporation. In June 2005, Hesse joined Sprint and oversaw the spinoff of its landline division into a separate public company– Embarq Corporation. Hesse served as the President and CEO of Embarq from May 2006 until December 2007. On December 17, 2007 he became CEO of Sprint Nextel. During his tenure, Hesse appeared in ten television commercials for the company. The