Abstract: Methods and apparatus useful for non-intrusive advertising on a mobile wireless communications terminal are disclosed. A method may include storing, according to a timed schedule, a plurality of files containing data representative of a plurality of advertising images in a memory of the mobile wireless communications terminal; and selecting, upon occurrence of a predefined event, one of the plurality of files for display as wallpaper on a display screen of the mobile wireless communications terminal. A method may include waiting for an occurrence of a event; determining, upon the occurrence of the event, if a contraindicated condition is present in the mobile wireless communications terminal, and if the contraindicated condition is not present: performing a first set of actions, but if the contraindicated condition is present: waiting for another occurrence of the predefined event.