We’ve had the technology for desktop 3D apps for years but can you think of a useful application where the controls are navigated in some sort of 3D geometry? No.
We already have networked 3D environments. Mostly use them for games. I don’t see this changing in a hurry. Maybe progress in remote gestural and voice control will speed things along. Or special glasses with network information overlayed, connected to GPS to let us literally run around in a virtual environment.