Mobile devices like iPhone, Blackberry, Android are becoming popular clients to consume any Web resources, especially Web Services (WS). This paper discusses cloud computing as a currently exploring way to deliver remote mobile applications to mobile devices through internet providing a remedy to the lack of resources in mobile devices and also a new level of security is achieved by centralizing maintenance of security-critical software. Cloud computing is emerging as one of the most important branch for providing seamless applications on mobile devices. In this paper, cloud computing is introduced as a new and speedily growing and accepted way of providing better and efficient applications for mobile devices. It provides mobile users with data storage and processing services on a cloud computing platform.