No, the GP said "Double tap the home button", which brings up the Multitasking tray. If you go into jiggle mode there, you can terminate the app. You'll see a r

No, the GP said "Double tap the home button", which brings up the Multitasking tray. If you go into jiggle mode there, you can terminate the app. You'll see a red icon instead of the X used for uninstall.