It's not exactly the holodeck from the Enterprise, but these glasses could plant holograms everywhere you look. It's called the Hololens, and it is set to be released at the same time as Windows 10. It should also be able to run any app that a Windows 10 PC or phone will be able to, so long as there's some holomagic UI programmed in. According to Miscrosoft, the product "seamlessly blends high-definition holograms with your real world."
What's this mean? The device will be easier to use around other people because you can interact with others and still utilize the HoloLens.
These gadgets will also be able to do a few things that smartphones and PCs can't. One of Microsoft's demos shows how these could be used as real world tools. Here, you see a father walking his daughter through a plumbing project over Skype. The key here is that the HoloLens allows you to use a tablet to "draw" arrows in three dimension, creating diagrams to allow people to easily see what you are saying.
The device could also make televisions obsolete. Seriously. You could just project a movie or show wherever you want, and the virtual television projected by 3D glasses will be able to display 3D images. Perhaps most importantly, you will still be able to see the people around you, so you won't be closed off in your own little bubble. Of course, this could completely revolutionize gaming.
And if that's not impressive enough, there is great potential for the future. For starters, Microsoft is already working with NASA (the National Aeronautics and Space Administration) in order to use the Hololens to drive the rovers that we have roaming about on Mars. Microsoft has recreated a 360 degree view of the Martian surface. One of the NASA employee's desks appeared to be sitting in the middle of the Martian landscape (and again, you can still see and interact with the desk).
One major drawback for the public is that there is no price listed yet, which means that it will probably come with a relatively hefty price tag. And of course, like the Google Glasses, there is no guarantee that this will really transform the technological landscape (or our everyday lives). But time will tell.