Some of the most well known mobile phone operating systems are Apple's iOS, BlackBerry OS, Windows Mobile, Googles Android and Noki's Symbian,. Most mobile phone operating systems are proprietary while others are open-source.
Apple's iOS is found on the iPhone, iPad and iPod Touch and is the world's most advanced mobile opperating system. It is a proprietary closed-source opperating system, Apple controls the software making it more stable then a open source system. Apple's iOS has a simply massive selection of apps for everything and its interface is far more funtional and thought out than it's competitors.
Windows Mobile, aka Windows Phone, is a mobile phone version of Microsoft's main operating system. Because of this, it is easily compatible with many Windows programs such as Microsoft Office, making it top rated phone's choice for business people that use Microsoft Windows PC's.
The Android is based off of the Linux operating system. Originally developed by an independent organization, it was later acquired by Google, although the OS itself remains free and open source. Android is praised by many for his flexibility as a platform. Anyone can develop apps for the OS.