iPhone Multitasking Tips

iPhone OS4′s multitasking is awesome It let you open multiple apps at the same time and switch quickly.

Launched two or three apps or games.
Double pressing the Home button will bring up all these apps on the multitasking screen. You can scroll through all the open apps and switch between them instantly.
To close an background app, press and hold the app you want to quit and click on the “-” symbol at the left corner.