Никакая это не гипотеза. Вот как было сказано на представлении: Wii sounds like "we," which emphasizes the console is for everyone. Wii can easily be remembered by people around the world, no matter what language they speak. No confusion. No need to abbreviate. Just Wii.
Wii has a distinctive "ii" spelling that symbolizes both the unique controllers and the image of people playing it. And Wii, as a name and a console, brings something revolutionary to the world of videogames that sets it apart from the crowd.