Abstract text

A method of attaching a removable user interface (UI) input device to a mobile phone in a handedness-neutral manner is presented. The method includes incorporating a left-side module socket and a right-side module socket into a mobile phone, such that the left-side module socket is oriented on a left side of the mobile phone, the right-side module socket is oriented on a right side of the mobile phone, and the left-side module socket and the right-side module socket are each capable of electrically and physically coupling with a removable user interface (UI) input device. The UI input device is then selectively coupled to the left-side module socket or the right-side module socket according to a left or right handedness of a user of the mobile phone.