Windows Phone 8.1 Update 2 will never get to most Windows Phones, but it certainly has a number of features which I wish was supported on my handset.

In the above picture we see another unannounced feature, demonstrated on the Lumia 640, which allows users to suspend their device by double tapping on the navigation bar.

This feature is particularly useful for those who want to preserve the buttons of their device for later resale, allowing users to both switch on and off their device without using any buttons at all.

See it demonstrated in Windows Phone Lover’s video below at the 3:30 mark.

Thanks Jussi for the tip.