Windows 8 includes Swipe down to Close App à la Nokia N9

The latest built of Windows 8 includes a touch gesture to close Metro applications which resembles very much to swipe down to close found in MeeGo Harmattan of Nokia N9 and N950. Since Nokia and Microsoft are currently best friends, so it will be very unlikely that Nokia would get upset about this. On the contrary, Nokia may have well suggested this addition to Microsoft. I personally think it's a good thing. Swipe gestures are one of the best features in Nokia N9, so I'm happy to see that these will be used in future products as well. In fact, I hope this feature will be in future versions of Windows Phone too. Check out the video to see Microsoft's implementation of "swiping".

Source: winrumors