Facebook has announced it will allow a "panic button" application on its social networking site.

BBC: Facebook unveils child safety 'panic button'

If the icon doesn't provide a menu, press Ctrl-Alt-Delete, select the name of the tray application, and click the End Task button.

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Tapping on any of the home screen's bubbly icons will pull up a flat app page, offering users a "start" button that can be used to launch the associated application.

ENGADGET: PlayStation Vita plays it smart with phone-like UI, we go hands-on

At first this seemed like a small, inadequate look at running applications, but we soon found that holding the PlayStation button brought up a more comprehensive cascade of tabbed items, naming each application explicitly.

ENGADGET: PlayStation Vita plays it smart with phone-like UI, we go hands-on

Jumping from application to application was quick and slick, but we couldn't help but remain disappointed by a power button that chose to work only sometimes and some relatively low-grade front- and rear-facing cameras: just 2MP apiece.

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Although not technically part of the patent, the application's attached visual aids are pretty creative too -- showcasing a completely redesigned Move wand with swappable button faceplates.

ENGADGET: Sony patent application reimagines PlayStation Move with ultrasonic capabilities, IR emitters

The controller is the same four-beamed multi-button affair we've seen before, but now with a custom version of the aforementioned DJ application to call its own, and make the set-up a cinch.

ENGADGET

The review notes that all of the media player and internet controls are the same as the aforementioned device (Cover Flow, lists, zooming, etc.), though the touch allows you to "double-click" the button on the front of the device to bring up a music control-panel, no matter what application you're in.

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