that geoverse thingy does look very impressive. What they're doing is less interesting as a game engine but more useful for displaying static information, which is exactly what that geo-thingy is. For that area, they've set themselves up perfectly.
Basically, they're going to become the Google of geo-scaping... hmmm...actually, imagine google earth and street view using this technology. taking a virtual tour of new york via the internet using the geosphere technology on google earth, with embedded links to more information of important buildings, areas, etc. double plus good.
As for gaming, i personally never took them seriously with the whole animation of points/voxels/atoms being so difficult and resource-intensive, and that they could only display static objects in ridiculous amounts of detail. However, having said that, the fact that they can display objects with such amount of detail raises the question if their technology could be used to support traditional polygon engines by rendering (indestructible) static objects with incredible amounts of detail: rocks, boulders, concrete buildings, statues, wall engravings, etc. they're focusing on the strengths of their technology (displaying static data in real time) instead of wasting resources on getting animated voxels into their engine. that isn't a bad thing, that's exploiting the strengths of their technology. forget the technology as a gaming engine.
I can also see the technology becoming very wide-spread for architectural purposes, particularly presentations.