Computer software for use in organizing, transmitting, manipulating, and reviewing text, data, and audio files on portable and handheld digital electronic devices; Computer software for the redirection of messages, global computer network e-mail, and other data to one or more electronic handheld units from a data store on or associated with a personal computer or a server; Computer software for the synchronization of data between a remote station and unit; Computer software for the synchronization of data between a fixed station and unit; Computer software that allows subscribers to utilize VOIP (voice over internet protocol) communication services; Computer software for enabling push communications technology; Electronic handheld units for the wireless reception and transmission of data which enables the user to keep track of and manage personal information and which also has the capacity to transmit and receive voice communications; Wireless handheld telecommunications devices, namely, cellular telephone that combines wireless voice and data telecommunications functions, digital imaging functions, computing functions, permits the two-way wireless transmission of e-mail and text, and permits wireless access to a global computer network