A method comprising: communicating a display device attachment status to an operating system to inform the operating system whether a first display device is attached to a second display device ; and controlling content displayed on the second display device, wherein controlling the content displayed on the second display device is based at least in part on the display device attachment status, wherein the display attachment status indicates whether the first display device is physically attached to the second display device , wherein the operating system controls whether one display device is treated as an extension of the other such as when the display devices are detached or whether content on the first and second display devices is controlled independently such as when the display devices are attached, wherein the extension of the other means that an object that is being displayed on the display of the first display panel is moved to a display boundary of the first display panel by a swiping touch gesture; and moreover by a swiping touch gesture the object is moved from the first to the second display panel; employing a triangulation technique for purposes of determining an orientation of the first and second display devices, when the display devices are treated as an extension of the other, communicating the orientation of the second display device relative to the first display device to the operating system; and controlling content displayed on the first and second display devices based at least in part on the orientation, and determining an approximate relative orientation of the second display device relative to the first display device, based on received signal strength indicators, which are provided by radios and knowledge of spatial orientations of antennas on the first and second display devices. communicating a display device attachment status to an operating system to inform the operating system whether a first display device is attached to a second display device ; and controlling content displayed on the second display device, wherein controlling the content displayed on the second display device is based at least in part on the display device attachment status, wherein the display attachment status indicates whether the first display device is physically attached to the second display device , wherein the operating system controls whether one display device is treated as an extension of the other such as when the display devices are detached or whether content on the first and second display devices is controlled independently such as when the display devices are attached, wherein the extension of the other means that an object that is being displayed on the display of the first display panel is moved to a display boundary of the first display panel by a swiping touch gesture; and moreover by a swiping touch gesture the object is moved from the first to the second display panel; employing a triangulation technique for purposes of determining an orientation of the first and second display devices, when the display devices are treated as an extension of the other, communicating the orientation of the second display device relative to the first display device to the operating system; and controlling content displayed on the first and second display devices based at least in part on the orientation, and determining an approximate relative orientation of the second display device relative to the first display device, based on received signal strength indicators, which are provided by radios and knowledge of spatial orientations of antennas on the first and second display devices. <EOS>