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
Kaz Hirai Hirai became chairman of Sony Computer Entertainment on September 1, 2011 and was replaced by Andrew House as president and group CEO. He retired as chairman of SCEI on June 25, 2012 but remains on the board of directors. On April 1, 2011, Hirai was promoted to representative corporate executive officer and executive deputy president of Sony Corporation. He oversaw the Consumer Products & Services Group. Hirai was speculated to become the successor to Howard Stringer, the current sitting president and CEO of Sony Corporation, who was then expected to step down in 2013. On February 1, 2012, Sony announced