I'm skeptic about this.
It's an interesting technology, but it's remained in that state (interesting, but not really applicable) for years.
And since the company is trying to sell their SDKs, that are apparently coming out soon, the vid just shows the good bits, without mentioning any shortcomings, problems or even hardware requirements.
It's great that they have a build that runs at 25FPS (which we only have their word for btw, might be rendered out at 0,2FPS), but on what hardware?
The few shots from a farther distance also show that their island is composed of only a few "blocks" which are repeated over and over again, which definitely saves memory, but isn't exactly perfect for video games.
I'll wait and see, but I have serious doubts that this will suddenly change computer graphics as we know them.