[jyl]

Originally Posted by stomachmonkey

You're both right.

He is shutting the app down. Double tap on the home button brings up all running apps and the hold to jiggle gives you a red - not x.

Hold to jiggle on the home screen lets you delete.

But I agree, there is no real reason to shut an app off after every use.

It comes in handy when an app is misbehaving rather than reboot the entire device or if you are really low on battery. Turning off unnecessary apps can buy you some time.

Sorry, I didn't understand what Z was doing. Now I see.