1. A method, comprising: at a multifunction device with a touch-sensitive display: displaying a first application view on the touch-sensitive display that corresponds to a first application in a plurality of concurrently open applications, wherein the first application view is displayed without concurrently displaying an application view for any other application in the plurality of concurrently open applications; detecting a first input; in response to detecting the first input: entering an application view selection mode for selecting one of the concurrently open applications for display in a corresponding application view; displaying an animation sliding the first application view such that part of the first application view moves off the display and a portion of the first application view remains on the display; displaying in a first predefined area an initial group of open application icons that correspond to at least some of the plurality of concurrently open applications; and concurrently displaying the portion of the first application view adjacent to the first predefined area; detecting a gesture on a respective open application icon in the first predefined area; and, in response to detecting the gesture on the respective open application icon: displaying a respective application view on the touch-sensitive display for a corresponding application in the plurality of concurrently open applications, wherein the respective application view is displayed without concurrently displaying an application view for any other application in the plurality of concurrently open applications; ceasing to display open application icons in the first predefined area; and exiting the application view selection mode.