IOS

&nbsp iOS is a mobile operating system developed by Apple inc. Based off of Apple's Mac OS X (an operating system for Macintosh computers), iOS serves as the operating environment for the iPhone, iPod Touch, and iPad. As of Q4 2010, iOS ranks 3rd place in global smartphone sales. iOS is notable for the numerous applications in its App Store; in fact, for many, this large assortment of "apps" is the main draw to the iOS platform. Like many video game publishers, Sega has released a number of titles for the iOS platform, including games based off of the Sonic franchise.