With the release of the new iPhone OS, users can change the phone’s background image. Jailbreaking the phone is no longer required for changing the background images.
Background images are a fun way to customize your iPhone. With iOS4 it’s easy too.
1. Click Settings
2. Select Wallpaper
3. Select the Wallpaper sample image
4. Navigate and select your specific wallpaper image
5. Click Set
6. Select if you want to set the image to the Lock Screen, Home Screen, or Both.
7. Press Home button to see how it looks!