This seems too good to be true.
A friend of mine has seen it. Says that it's true.
The viewing angle is very specific; if you’re off to the side it doesn’t work, but the sweet spot is big enough or perhaps 4-5 people to stand in front of.
Given they’ve quietly delivered on exactly what they (as far as I can tell) promise, I see no particular reason to believe the 8k isn’t real.
Obviously wait for the detailed reviews to roll out, healthy skepticism (for example I have no idea what the SDK is like; perhaps it’s only capable of rendering specific types of 3D content)... but this isn’t a scam.