US Patent 7734702 Content update feature for an instant messaging service

A first mobile terminal comprising a screen configured to display a first window for displaying messages communicated between the first terminal and a second terminal; a user interface, wherein a user may interact with the user interface to update content in a first message displayed in the first window, wherein the first message is previously communicated to and displayed on the second terminal; a processor for detecting updated information and constructing an update packet comprising information about the updated information; and a transmitter for transmitting the update packet to the second terminal to cause a corresponding content update in the first message previously displayed on the second terminal.