Mobile computing device and method for switching connectivity between a mobile computing device and a communication network

A mobile computing device ( 101 ) includes a data storage ( 310 ) and an application ( 300 ). The application is used for performing functions of the mobile computing device, and includes a connectivity switching module ( 303 ) for receiving demands for connection to or disconnection from a communication network, and for switching connectivity between the mobile computing device and the communication network; a data processing module ( 305 ) for processing data in the data storage; a data filter ( 307 ) for filtering new or changed data in the data storage; a data synchronizing module ( 309 ) for synchronizing data in the data storage with data available on the communication network; and an account setting module ( 301 ) for setting various dialup accounts for the mobile computing device to be connected to the communication network. A related method for switching connectivity between a mobile computing device and a communication network is also disclosed.