1. A method for modifying a state of a portable computing device: detecting contact with a touch-sensitive display at a first region associated with an unlock image displayed responsive to the portable computing device being in a locked state; responsive to detecting contact with the touch-sensitive display at the first region, displaying an action image in a second region of the touch-sensitive display; detecting movement of the contact with the touch-sensitive display, while the unlock image remains stationary at the first region; determining a direction of movement of the contact with the touch-sensitive display; responsive to determining the direction of movement of the contact is towards the action image, visually modifying the action image; and responsive to the contact with the touch-sensitive display reaching the second region, executing an action associated with the action image.