How to Organize Your iPhone Applications on Home Screens
iPhone can display up to 11 Home screens. By default, the first contains preinstalled apps, and the second Home screen contains a few more preinstalled apps in the Utilities folder; other screens are created to contain any apps you download or sync to your iPhone.
At the bottom of any iPhone Home screen (just above the Dock), a magnifying-glass icon represents the Search screen to the left of the primary Home screen; dots that appear to the right of the magnifying-glass icon indicate the number of Home screens; and a solid dot specifies which Home screen you’re on now.
Tap the Home button to open the last displayed Home screen.
Flick your finger from right to left to move to the next Home screen. To move back, flick from left to right.
To reorganize apps on a Home screen, press and hold any app on that page. The app icons begin to jiggle, and any apps you installed will sport a Delete button (a black circle with a white X on it).
Press, hold, and drag an app icon to another location on the screen to move it.
Tap the Home button to stop all those icons from jiggling!
To move an app from one page to another, while the apps are jiggling, you can press, hold, and drag an app to the left or right to move it to the next Home screen. You can also manage what app resides on what Home screen from iTunes when you’ve connected iPhone to iTunes via a cable or wireless sync.