Glu Mobile, Inc. (also known as Glu Games,stylised as glu) is a developer and publisher of mobile games for smartphone and tablet devices. Founded in San Francisco, California, in 2001 as Sorrent, Glu has since taken up office in a few countries. Glu offers products to multiple platforms including iOS, Android, Amazon, Windows Phone and Google Chrome. In December 2004, San Mateo, California-based Sorrent merged with London-based Macrospace. In June 2005 the merged company created a new corporate entity titled Glu. That same year, Greg Ballard replaced Sorrent founder Scott Orr as CEO. In 2006 Glu Mobile acquired iFone and in 2007 it acquired Chinese mobile game producer Beijing Zhangzhong MIG Information Technology Co. Ltd. ("MIG"). In September 2007, Glu Mobile announced the launch of Asteroids for mobile phones. In March 2008 Glu Mobile acquired San Clemente-based mobile developer Superscape. In January 2010, Niccolo de Masi joined Glu Mobile as the President and CEO. Mr. de Masi was previously CEO at Hands-On Mobile. Since his arrival, Glu has transitioned to a freemium business model focused around Glus original IP.