IGNwii has got an interesting real time Wii tech demo, made by Hight Voltage, that shows some nice graphics but not much more. They are working on The Conduict, a FPS for the Nintendo console that uses this 3D Engine, but up until now, High Voltage has self-funded the project, so this could mean that we will never see the game again if they do not find a publisher. So, who knows, these screenshots could be from the next unseen Wii game.
Video (Quantum3 Tech Demo):
Screenshots (The Conduict):