Gamebryo, developers of several PC gaming engines -- most recently and notably the graphics engine for Elder Scrolls IV: Oblivion -- are now developing a game engine specifically for the Wii, with the hopes of facilitating graphical improvements on the system and even open the door to possible multi-platform titles (With heavy modification, of course).

http://www.neoseeker.com/news/story/7121/

Relevant text: "We are delighted to announce the Wii port of our Gamebryo engine. With the success of Nintendo's Wii console catching much of the industry off guard and offering fresh interactive features, developers need new tools to be able to develop for multiple platforms that offer vastly different capabilities and require different programming techniques," said Geoffrey Selzer, CEO of Emergent. "We are committed to making multiplatform development as painless as possible while still delivering industry leading performance. Gamebryo for Wii simply sets a new standard for middleware designed for this top selling platform. We are very proud to be part of Nintendo's Third Party Tools program." 

WOW good thing for the Wii, do Wii games use the Unreal Engine 3?

 LOL...your so freaking funny, you really what people to play that dumb game.