Abstract: A portable electronic apparatus arranged to be able to perform a plurality of functions, one or more of a plurality of functions being selectively performable when the apparatus is placed in a corresponding functional mode, the apparatus having a user interface to allow user operation of the plurality of functions, each of the functions being user operable using a particular region of the electronic apparatus user interface, the apparatus comprising a user moveable cover arranged to be moveable into a plurality of positions, wherein each of the cover positions is associated with a particular functional mode of the apparatus and is arranged to cover one or more regions of the user interface not associated with the particular functional mode and to reveal one or more regions of the user interface associated with the particular functional mode.