1. A method of identifying data to transmit from one mobile device to another mobile device, the method comprising: presenting a root user interface on a display of the mobile device to a user, wherein the root user interface has a plurality of graphical indicators that each correspond to a type of relationship between the user of the mobile device and another individual, and wherein each of the plurality of graphical indicators also have an associated set of data that is related to the corresponding type of relationship; receiving a selection from the user of one of the plurality of graphical indicators; presenting a secondary user interface on the display of the mobile device to the user, wherein the secondary user interface corresponds to the graphical indicator selected by the user and displays the associated set of data that is related to the type of relationship reflected by the selected graphical indicator, wherein the associated set of data includes at least two data items that are selectable for transmission to another mobile device, and wherein the associated set of data that is related to the type of relationship is determined by analyzing the contents of the set of data; and receiving a selection from the user of a data item of the displayed set of data for transmission to a mobile device of an individual having the type of relationship with the user reflected by the selected graphical indicator.