Apple iPhone OS 3.1 - Manual (Page 29)

Close an application and return to the Home screen: Press the Home button
below the display.
Scrolling
Drag up or down to scroll. On some screens such as webpages, you can also scroll side
to side.
Dragging your finger to scroll won’t choose or activate anything on the screen.
Flick to scroll quickly.
You can wait for the scrolling to come to a stop, or touch anywhere on the screen to
stop it immediately. Touching the screen to stop scrolling won’t choose or activate
anything.
To quickly scroll to the top of a list, webpage, or email, just tap the status bar.
29 Chapter 2 Basics