Abstract: Portable electronic apparatus including an apparatus housing; a touch-sensitive display for use with an input writing tool; a zoom-in key on a second side surface; a zoom-out key on the second side surface; and a controller. The portable electronic apparatus can display content on the touch-sensitive display, wherein displayed content is a subset of available content; the controller can zoom in on displayed content on the touch-sensitive display in response to an actuation of the zoom-in key; the controller can zoom out on displayed content on the touch-sensitive display in response to an actuation of the zoom-out key; and the controller can pan available content on the touch-sensitive display in response to a combination of a tap of the writing tool in a first position on the touch-sensitive display and a move of the writing tool to a second position on the touch-sensitive display.

Abstract: A method of controlling an electronic device using a gesture as an input, including: recording a gesture and detecting, within the gesture, each one of a sequence of partial gestures that form the gesture; and performing the same first command on detecting each partial gesture.

Abstract: A text input method is described for an electronic apparatus having a user interface with text input means and a display screen. Word completion functionality is provided for predicting word candidates for partial word inputs made by the user with the text input means. The method involves receiving a partial word input from the user and deriving a set of word completion candidates using the word completion functionality. Each of the word completion candidates in the set has a prefix and a suffix, wherein the prefix corresponds to the partial word input. The method also involves presenting the suffices for at least a sub set of the word completion candidates in a predetermined area on the display screen, wherein each of the presented suffices is made selectable for the user.

Abstract: A pocket computer is presented having an apparatus housing and a user interface with a touch-sensitive display provided at a first side surface of said apparatus housing, at least one key for navigation among content shown on said display, and at least one key for performing zooming on content shown on said display. Various methods of operating this user interface are also presented.

Abstract: A text input method is described for an electronic apparatus having a user interface with a touch-sensitive display screen. A virtual keyboard is presentable on the display screen so as to facilitate text input for a user by pointing at different virtual keys of the virtual keyboard. Word completion functionality is provided for predicting full word candidates for partial word inputs made by the user on the virtual keyboard. The method involves receiving a partial word input from said user and deriving a set of full word candidates using the word completion functionality, each of the full word candidates in said set having a prefix and a suffix, wherein the prefix corresponds to said partial word input. The suffices for at least a sub set of the full word candidates are presented in a predetermined area on the display screen, wherein each of the presented suffices is made selectable for the user.