Oh dear. In a frighteningly embarrassing bout of "spontaneity" employees over at the newly opened Mission Viejo Microsoft store burst into an impromptu line dancing session. Fair play to them for keeping it up for a nerve-wracking 4 minutes, despite the store's customers clearly either uninterested or too embarrassed to look.

I hope these poor cogs in the Microsoft machine got a nice bonus for this little stunt. Their tired feet and tainted souls sure have earned it.

Call of Duty: Modern Warfare 2 is easily the most hotly anticipated game of the year. It could be a steaming mess of a game and still top the charts on the back of the reputation of it's predecessor alone. But from the looks of this trailer, it's safe to say Modern Warfare 2 is going to be a very special title indeed.

Modern Warfare 2 features gripping and heart-racing first-person shooter action as players face off against a new threat dedicated to bringing the world to the brink of collapse.

You can pre-order Call of Duty: Modern Warfare 2 from Amazon UK here, ready for it's 10th November release.

Zombies, zombies, zombies; just when will we stop getting a kick out of maiming these lumbering, brain-eating foes? Not any time soon if game developers Valve have their way. Left 4 Dead 2 is set to hit shops on the 20th November, so get ready for another frantic blast of four-player, undead whacking first-person madness on its way.

The highly anticipated sequel takes place in the Deep South, where four brand new survivors are battling against the zombie horde. Valve promise three horrific new Special infected foes, the brand new addition of melee weapons, and a refined version of the AI Director that made the original so replayable.

Check below as Tech Digest's very own Gerald Lynch gets prepped for the zombie horde with an SAS survival training session.

As many as 10 million people are believed to have watched U2's gig at the LA Rose Bowl Stadium, streamed live via YouTube on Sunday night.

Estimates had at first circulated around hundreds of thousands of viewers; very respectable figures themselves. But now Variety are reporting a staggering 10 million people around the globe saw the show.

The figure makes U2's show the single largest live-streaming event in YouTube's history, with the only comparable figure being the 700,000 who streamed the YouTube Live event in the summer.

Watch the full recorded gig here.

MJ, RIP.

Meet Martin Jetpack, Dutch inventor determined to produced back-strapped solo powered flight. Presumably a big fan of Thunderball. In this video we see Martin's latest creation. This is the Ducted Fanpack and, according to the man, it can get up to speeds of 60mph and has a range of 8,000 feet before you need the in-built emergency parachute.

It's not exactly portable and looks more like a drum kit than anything else but, well, take a look...

It doesn't look like it goes that high which could be an issue if you don't live in Holland or East Anglia but, should you be sufficiently stunned and not in stitches, then see if you can tap up the bank for the $100,000 you'll need.

(via Oh Gizmo!)

This video/work of genius by Rotterdam based animator Evelien Lohbeck speaks for itself. I wouldn't normally feature animation on Tech Digest but, then, animation is always titled "Note Book". Enjoy.

(via Rubbishcorp)

As I watched the first 15 seconds of this video, I was convinced it was an advert for Cadbury's Creme Eggs. For the rest of the 2mins and 20secs, I was too busy wondering if my jaw was ever going to close again. Watch the clip and you'll see what I mean...

Here's a video to make you glad that none of your friends class themselves as 'experimental media artists.' In his latest video, Daito Manabe hooks up four (presumably former) friends to his face visualiser - a device which transforms music into electrical pulses that stimulate the facial muscles.

You might have forgotten this, or been unaware of its existence, but I thought it was worth some nostalgia. This is Doctor Spin performing their rave-tinged version of the music from "Tetris" on Top of the Pops in 1992. Oh da!

They say there are 10 types of people in this world - those who understand binary and those who don't. If you're in the latter group, then click play on the video above, sit back, and have it explained in a minute flat. It's certainly the best video I've seen in the last 111 days.

More YouTube Videos: Motion controlled mp3 player | Unbelievable spinning wrestler

I'm not sure I'd actually want a motion controlled mp3 player but I'd certainly like the skills to make one. I get the feeling it woudn't be such a clever gadget on the move but I love the SD card loading and the fact that it hooks up stereo as well as the seamless way it all works. Neat bit of hacking and really well shot vid. Well done, whoever you are...

(via Dvice)

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Click play on the video. Now watch as the world's aeroplanes cross continents and oceans over a 24-hour period. It's strangely relaxing in the same way that watching a trail of ants in a garden on a warm summer's afternoon is relaxing.

One thing that's worth looking out for - compare Europe at the start of the video to Europe at 0:45 - as you'd expect, the flight volume changes dramatically between day and night.

Seen a similarly fantastic depiction of data? Post it in the comments below. I love stuff like this, so if you've got a favourite then I want to see it too.

Nitmesh (via @damiano)

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This is turning into a great week for web video. On top of the awesome trebuchet we featured yesterday, I couldn't pick today between the amazing Mexican wrestler, Mascarita Dorada, above and a farewell compilation of George W Bush's 10 best moments from the David Letterman show in the States. You can see that just over the jump. Which is your favourite? Let us know in the comments.

This was a candidate for YouTube video of the week tomorrow, but it was so awesome that I just had to post it today. A man's built a TREBUCHET and it throws FIREBALLS. Oh, and it's called "Mongo". That's all you really need to know. Skip to 2:55 for the best bit. Have you built a siege weapon in your back garden? Take some photos and send them to us, and leave a comment below.

Geeks are Sexy (via CrunchGear)

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This fantastic video was produced by a chap called PES, and is part of the 2009 Sundance Official Selection. It's a beautiful piece of stop-motion animation using rubber bands, pick-up sticks, rubik's cubes, and bubblewrap. Got a favourite YouTube video? Link us to it in the comments, and you might see it as a future Video of the Week.

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Whoa - this is awesome. Supersize a simple bottle rocket, and strap it to a terrified-looking Japanese bloke. The most impressive thing? The science involved, neatly summarised by PopSci. In short, this bloke leaves the launchpad at over 200MPH, experiencing acceleration of approx 10gs! Don't try this at home, kids.

PopSci (via Digg)

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This remarkable video is the work of Australian Keith Loutit, who specialises in tilt-shift photography. This technique involves manipulating the focus of an image so that it appears toylike. There's a great Photoshop how-to here, and a gallery of other tilt-shift pics here. Post your favourites in the comments below.

(via the Telegraph)

Related posts: Stellated Rhombic Dodecahedrons | Die! Santa! Die!

Okay. Pay attention. This is the transformation of two stellated rhombic dodecahedrons from a cube, according the bloke in the video. I don't really know what that means, but that might be because I'm blinded by the power of geometry-based-awesomeness.

It's also known as the Yoshimoto Cube, and you can buy it here. Bit late for a stocking filler, I'm afraid.

(via Gizmodo)

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I'm not sure I have words for this. It's one of the most incredible things I've ever seen. After a few cups of eggnog, it makes perfect sense - I promise.

(via Kotaku)

Related posts: There is nothing related to this post, and there never will be.