Massively Multiplayer Online Game (MMOG) is the recently popular game genre that is capable of supporting more than thousands of players in a persistence game world concurrently. With the growing of mobile game market size and improvement of wireless technology, a MMOG on mobile device is possible and being concerned. There are many issues that may be encountered when developing a MMOG. Since the mobile game must be created to run on hundreds of device, to deploy and distribute the MMOG on mobile device is harder. Also, the mobile application is easily interrupted by the surrounding environment, such as telecom service or network connectivity. Those make the mobile online game development more challenging. In this paper, we will propose a client framework for MMOG on mobile device that consider both MMOG and mobile games issues. We provide a flexible and easy-to-deploy platform for mobile MMOG.