IGN had an interview with Nintendo about their upcoming Wii console.
IGN Wii: Why announce the final name now and not at E3 2006?
Perrin Kaplan: Why are we doing it now? Well, let me just say that if you look at how much time people have spent online talking about it today and paying attention to it today, it really, I think, required that kind of attention and seeping in for people to let it settle a little bit. It would be really, really easy to lose that at the show. Also, I think it's important for us to go into the show with people knowing what we're talking about.