No, it's no joke. Nintendo's calling the Revolution the Wii.
Wii here at The Escapist want to start a grassroots campaign to just call the damn thing the Revolution. Why? Because it's ballsy, it's pretty factual, and it has the pretention people who would actually buy an underpowered next-gen system love. Wii can claim control of the language. All Wii have to do is organize.