A large list of domain names related to Wii U are now active and redirect to the main Nintendo homepage. The recently demonstrated New Super Mario Bros. Mii is part of the list. This is also the only Wii U game that Nintendo have released official media for, labelled simply "Wii U Software Images" in press material.

Other products with a "U" appended include the Balance Board, WiiWare, Wii Music, Wii Play, Wii Party, Wii Remote, Wii Speak, and even Wii Universe. 

It is possible that none of the reserved names will be used for websites, and equally possible that the names will only be used for redirection purposes for people who stumble upon them, but it is interesting to see the "New Super Mario Bros. Mii" name when it wasn't used in official screenshots.

The list of domains:
- kirbywii.com
- mariobrosu.com
- newsupermariobrosmii.com
- newsupermariobrosu.com
- rhythmheavenwii.com
- rhythmparadisewii.com
- supermariobrosmii.com
- supermariobrosu.com
- wii-u.com
- wii-u.net
- wiibalanceboardu.com
- wiifitu.com
- wiimusicu.com
- wiipartyu.com
- wiiplayu.com
- wiispeaku.com
- wiisportsu.com
- wiiubalanceboard.com
- wiiufit.com
- wiiumusic.com
- wiiuni.com
- wiiuniverse.net
- wiiuparty.com
- wiiuplay.com
- wiiuremote.com
- wiiuremote.net
- wiiuspeak.com
- wiiusports.com
- wiiuware.com
- wiiuwheel.com
- wiiuzapper.com
- wiiwareu.com
- wiiwheelu.com