Abstract: A portable device includes: a display screen; a processor; and an input device operable by a user, wherein the processor controls the display screen to display a graphical user interface comprising a plurality of images arranged in a three dimensional (3D) space in one of a depth layout and a curved layout. In the depth layout mode images are displayed arranged such that at least a first image is positioned further away in the 3D space than a second image and each image is positioned upon a two dimensional (2D) surface extending into the 3D space, transverse to the 2D surface at its respective position and facing the plane of the display screen.