What is claimed is:
1. A method, comprising: at a portable multifunction device with one or more processors, memory, and a touch screen display; displaying a portion of web page content in a stationary application window on the touch screen display, wherein the portion of web page content includes: a frame displaying a portion of frame content, and other content of the web page, comprising content of the web page other than the frame content; detecting a translation gesture by a single finger on or near the touch screen display; in response to detecting the translation gesture by the single finger, translating the web page content to display a new portion of web page content in the stationary application window on the touch screen display, wherein translating the web page content includes simultaneously translating the displayed portion of the frame content and the other content of the web page; detecting a translation gesture by two fingers on or near the touch screen display; and in response to detecting the translation gesture by the two fingers, translating the frame content to display a new portion of frame content in the stationary application window on the touch screen display, without translating the other content of the web page.
2. A method, comprising: at a portable multifunction device with one or more processors, memory, and a touch screen display: displaying a portion of page content in a stationary application window on the touch screen display, wherein the portion of page content includes: a frame displaying a portion of frame content, and other content of the page; detecting an N-finger translation gesture on or near the touch screen display; in response to detecting the N-finger translation gesture, translating the page content to display a new portion of page content in the stationary application window, on the touch screen display, wherein translating the page content includes simultaneously translating the displayed portion of the frame content and the other content of the page; detecting an M-finger translation gesture on or near the touch screen display, where M is a different number than N; and in response to detecting the M-finger translation gesture, translating the frame content in the stationary application window, to display a new portion of frame content on the touch screen display without translating the other content of the page.