Also shown off for the first time was Tizen, Samsung and Intel's alternative to Android.
Unfortunately, the products being shown off at today's event weren't quite ready for prime time.
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Researchers have shown off a "magic carpet" that can detect falls and may even predict mobility problems.
Home was shown off in a presentation given at Facebook's campus by the social network's founder Mark Zuckerberg.
Indeed, HP has already shown off the Envy X2 detachable tablet that locks into a matched keyboard.
Other unmanned prototypes have been shown off by the American space agency Nasa.
Image search is shown off by an ice sculptor, who selects various perspectives of a tiger for some inspiration.
The aircraft were shown off along with six other military drones at a major Chinese arms show last November in Zhuhai.
The device was shown off at the Thinking Digital Conference in Gateshead.
In total 28 designs were shown off at the fair and the winner was a team from the California Institute of Technology.
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Researchers have shown off a means to spray-paint batteries onto any surface.
Even this week at PAX, the Mechromancer has been shown off with an incomplete skill tree due to it not being finished yet.
Arguably Nokia could have shown off a phone running Symbian, Meego, or even Android, and the bulk of the presentation would have been identical.
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Shown off here at CES 2013, the Flex is a wireless band much in the vein of Nike's Fuelband and Jawbone's rebooted Up.
We were then treated to a mini-drama which saw the many features of the phone shown off by the compere, his family and his friends.
Microsoft has shown off an augmented reality system that allows users at different locations to work together on tabletop activities, sharing objects which they can both handle.
Gigabyte's no stranger in the field of dockable computing devices, and its M2432 laptop shown off at Computex is yet another example proving just this.
ENGADGET: Gigabyte M2432 laptop with GeForce GT 440 graphics card dock hands-on
In the last few days it's shown off both the new live video player shown above, as well as a new Facebook app in beta for BBC Sport.
Then again, the 8X has already been shown off at a press event or two, and we're not sure a Verizon-branded variant would merit such a high-profile news conference.
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The first, shown off this week in Portugal, was to be called the Gingo, until Renault objected that this was too close to the name of its Twingo model.
All of the essentials (and then a few extras) have been tossed onto the Umeox Apollo smartphone, shown off for the first time today at Mobile World Congress in Barcelona.
ENGADGET: Intivation intros Umeox Apollo smartphone: $100, solar-powered, Android 2.2 (hands-on)
Microsoft has shown off the next version of Windows 8 at its BUILD conference in California, giving 5, 000 developers a Samsung tablet running the operating system, Computer World reports.
The image - of the shadow cast by the Moon as it blocks the light and particles - was shown off at a meeting of the American Physical Society.
They are afraid of what these things will be able to do (and because no one has really shown off yet what they do that fear is at least partially justified).
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It's gotten a bit drowned out in all the Note 8.0 fanfare, but there's another notable member of Samsung's Galaxy being shown off here at MWC 2013: the Xcover 2.
The only native app being shown off was Skype, and there was a camera mounted on top of the demo TV, though we didn't get to actually check out video calling in action.
There is an image of a courier vessel from 1926 on the 53p stamp, and an RNLI lifeboat, from the present day, is shown off the coast of Corbelets Bay on the 69p stamp.
The prototype device, shown off at Mobile World Congress (MWC) in Barcelona, is equipped with various connection technologies such as GPS, 3G and wifi - and has an LED display on top of the handle.
And really, such a proposition doesn't seem like a huge stretch -- after all, the Wii U is largely expected to be the only major piece of hardware shown off by the big three this year.
ENGADGET: Xbox SmartGlass: did Microsoft just render the Wii U controller obsolete?
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