Has anyone figured out what this does yet?
You may be already aware of this, but the Wii has a maintenance mode that can be accessed by pushing the + and - buttons and then pushing A at start up. I just got a reply from Nintendo about an Inquiry. Feel free to post it. Here is the message unedited:
At this time, the “Maintenance Mode” you discovered has no functionality for consumers. If at some future point a consumer application for this mode is made available, it will be revealed on our website (www.nintendo.com).
Even though it appears—with the exception of the Wii Message Board—that everything functions normally in this mode, we do not recommend using it at this time.
Nintendo of America Inc.