According to a recent Wired article, a number of companies are training their employees using a combination of the Nintendo Wii and the virtual world Second Life. Here's a blurb:

"Nintendo games have made the Wii controller a satisfyingly realistic controller for pretend tennis, golf and baseball. But how about using it to practice doing surgery, applying pesticides or operating a nuclear power plant? Real-world simulations like these are perfectly suited to Nintendo's Wiimote, says MIT research fellow David E. Stone. In fact, he claims the motion-sensitive controller is "one of the most significant technology breakthroughs in the history of computer science."

That quote may sound extreme. However, companies have found that virtual training is both cheaper and more convenient. I'm not sure I'd like my surgeon practicing on a video game console. But, the concept certainly has potential for many types of training. Check out the Wired article here: Wii + Second Life = New Training Stimulator.