My question is how would you possibly swap between blocks/items and actually dig and build? What makes you place and what makes you remove? What makes you use a crafting table and/or enchantment table?

I can't see how just the glasses alone would make Minecraft work properly.

Would love to it to be revealed though as it seems pretty cool, but without a controller I can't anything more than tech demos.

So AR not hologram then. Typical of corporations to co-opt and misuse terminology for marketing PR. Not pointing fingers solely at Microsoft for this, but it happens to be Microsoft doing it right at this moment.

A bit like Illumiroom I see this tech as having use in enterprise (industrial and entertainment) applications rather than home or consumer entertainment. Having entertainment content (movies or games) showing up on my living room decor diminishes immersion rather than enhancing it in most cases. This is why from a gaming perspective VR is much more interesting to me, even though I don't ever see myself forking out for a VR headset. However, if you custom design, say, a battle arena and then overlay the AR from the AR glasses then you can have a very immersive gaming experience, hence I see great applications in enterprise. It can pretty much transform the laserstrike experience, so that you're not just battling other people, but also battling monstors, or zombies or what have you in the laserstrike arena.

If they could make the headsets robust enough I reckon AR battle arenas would be amazing. More immersive than laser strike, less messy and painful than paintball. Of course they will be able to embed the headsets into cool helmets and such.

The tech as demoed seems very awkward to use for precision gesture controlled stuff. It's still quicker and more precise to use a mouse. But having the AR image displayed in 3D space while you're working is very helpful.

Yeah it's definitely not a hologram. Couldn't you call that false advertising?

Read this hands-on
http://www.wired.com/2015/01/microsoft-hands-on/
Doesn't sound like it's going to be a consumer device, at first at least. More an expansion on long distance collaboration for business applications.

hahah typical of you XD, but yeah that looks pretty cool.

Actual reviewer:
"Like when I broke through a real-life wall with a Minecraft shovel and found veins of precious ore inside"

-source gizmodo

Still have not found a single review of someone playing the game.

I don't believe it for a second that it will look even remotely like that. The tech isn't there at a consumer price point. I imagine it will look more like a HUD on a late 90s early 00s car.

You might have answered this already, but why don't you believe the Minecraft on your living room will happen?

Read the Wired article about HoloLens.  The writer went to Redmond and experienced the device for herself, and three of the experiences, including the Minecraft one depicted in the video, were experiences she had using the device.

The other two were having someone help her with a home repair project.  In her case, wiring an electical switch, and the other being the Mars landing site.  They also weren't pre-canned.  The person on the other end of the experience, showing her how to do things or engaging her in planetary exploration, was in the other room.

Microsoft has a similar technology at play in RoomAlive, Illumiroom (predicessor to RoomAlive) and Maneo-a-Maneo (possibly the technology behind HoloLens).  The latter actually produces holographic images without any kind of head unit. 

I didn't mean that it won't happen. But it's too far advanced to be coming out really anytime soon. It's a teaser of the possibilities. THe wired writer didn't write anything about minecraft. I read the article.