The back key on Windows Phone 7.5 (Mango) isn’t just to go back.

It also activates multi-tasking. A single press goes back, but holding the button in opens a list of open apps.


Some of you might have also noticed that when you press the home button or switch apps, the other application stay in some sort of suspended animation. If you multi-task you’ll notice that the app is still there. Here’s a neat trick on how close an app:

From the home screen open the application you want. Now press the “Back button” once which takes you to the home screen. The app is now fully closed.

This trick doesn’t work on the browser as Windows Phone always saves the last page you were on. (Credit: Phonebuff)