short version: This is a fake. Atleast what they are saying is fake.
tldr version: I would like to believe it. and in time we will have something like this sure. We already have "screens" that are able to project images on "thin air" but in order for it to be a real 3d hologram, you would have to be able to view whatever it is you are looking at from any angle. You can not do that with a projection device, because you would need to project an image for every viewable angle, so you would need, no less than, 360 projecting devices, and unless you had some sort of prism preventing you from seeing the other angles.... then you would see ALL 360 projected images at the same time. and it would be basically no more than a bright mess. Furthermore if you watch closely, the images that are supposedly "3d holograms" are not moving in sequence to the recording-camera's movement. They are in fact flat "sprites" (anyone who has played doom, doom2, or duke3d recognizes this effect). So in order for this to work you cannot have or use a projecting device, you would infact have to "create" a 3d object. using some sort of plasma control device, or something that "physically" creates an object. otherwise you will never be able to see a 3d object (because of light pollution)
Lastly. and this is the most important part. Even if you could invent a way to show 3d objects/images.... There is currently no camera, or recording device, to record those live images that they are showing as "supposedly 3d". At best, even if you could project 3d images, you could only project computer generated images. Or possibly use (up to) 360 cameras to record an image from 360 degrees... but that would be very annoying, because the object would have to be basically set in one position,