Android (operating system) store, and by September 2013, one billion Android devices have been activated. , the Google Play store has over 2.7 million Android applications published, and , apps have been downloaded more than 65 billion times. The operating system's success has made it a target for patent litigation as part of the so-called "smartphone wars" between technology companies. Android devices account for more than half of smartphone sales in most markets, including the US, while "only in Japan was Apple on top" (September–November 2013 numbers). At the end of 2013, over 1.5 billion Android smartphones have been sold in the four
Kylin (operating system) Industry and Information Technology of the People's Republic of China to release an Ubuntu-based Linux OS with features targeted at the Chinese market. Ubuntu Kylin has been described as "a loose continuation of China's Kylin OS". It is intended for desktop and laptop computers. The first official release, Ubuntu Kylin 13.04, was on 25 April 2013. Kylin (operating system) Kylin () is an operating system developed by academics at the National University of Defense Technology in the People's Republic of China since 2001. It is named after the mythical beast "qilin". The first versions were based on FreeBSD and were