Apple iPad iOS 4.2 - Manual (Page 13)

Multi-Touch Screen
The controls on the Multi-Touch screen change dynamically, depending on the task
you’re performing.
Adjusting Brightness
To adjust the screen’s brightness, double-click the Home button to view the
Multitasking status bar. Flick from left to right, then drag the brightness slider.
Brightness
Using Lists
Some lists have an index along the right or left side, which helps you navigate quickly.
Index
Find items in an index list: Tap a letter to jump to items starting with that letter.
Drag your finger along the index to scroll quickly through the list.
Choose an item: Tap an item in the list.
Depending on the list, tapping an item can do different things—for example,
it may open a new list, play a song, open an email message, or show someone’s
contact information.
Return to a previous list: Tap the back button in the upper-left corner.
13 Chapter 1 At a Glance