What are the competitors to Android and iOS Operating Systems

What are the competitors to Android and iOS Operating Systems

Hi Yehia,
The top operating systems for mobile phones are as follows:

1) Blackberry OS: The latest Operating system is Blackberry OS 7.1. The latest smartphone that use Blackberry operating system are Blackberry Z10 with version 10.2.1.1055
2) Windows OS: The operating system for Windows phones is Windows 8. The latest  smartphone that use Windows operating system is Nokia Lumia series.
3) Symbian OS: The Symbian OS is used to design the lower end phones. The phones that use Symbian operating system is Symbian ANNA and BELLE.
4) BADA: It is user friendly and efficient operating system. The latest version is Bada 2.0.5. The smartphones that use this BADA  are Samsung Wave, Samsung Wave 2, Samsung Wave 3.1.
5) Palm OS: It was designed for touch screen GUI. Palm OS is mainly used by companies like Lenovo, Legend Group, IBM, Janam.
6) Open Web OS: It is used for very high end smartphones and tablets. The device that uses Open Web OS is HP Touch Pad.
7) MeeGo: It is used for developing car devices, television sets, net books. The phone that uses MeeGo  is Nokia N 9.
8) Google Android: It is a Linux derived operating system. The phone that use Google Android OS are HTC.
9) Meamo: It uses Linux Operating system. It phone that uses Meamo OS is Nokia N9 00.