1. A method, comprising: at a multifunction device with a touch screen display: displaying editable content on the touch screen display at a first magnification; detecting a finger gesture on the editable content; in response to detecting the finger gesture on the editable content: expanding a portion of the editable content on the touch screen display to a second magnification that is greater than the first magnification while continuing to display at least some of the editable content at the first magnification; and displaying a content magnifier that displays the expanded portion of the editable content and an insertion marker at a first location within the expanded portion of the editable content; detecting movement of a finger contact across the touch screen display; moving the content magnifier and changing the expanded portion of the editable content in accordance with the detected movement of the finger contact; moving the insertion marker from the first location to a second location within the expanded portion of the editable content in accordance with the detected movement of the finger contact; detecting lift off of the finger contact while the insertion marker is located at the second location within the expanded portion of the editable content; and, in response to detecting lift off of the finger contact: ceasing to display the content magnifier and the expanded portion of the editable content; displaying the insertion marker at a current location in the editable content at the first magnification, wherein the current location corresponds to the second location within the expanded portion of the editable content; and displaying a first command display area adjacent to the insertion marker, wherein the first command display area includes an icon for selecting content associated with the current location of the insertion marker.