Well, Project Café is a really shit name, and obviously just an internal codename. It was never going to be that once it hit shelves.
Naming it "Nintendo" would be a fantastic return-to-form for the company, as far as home console names go. I still think Wii is a shit name.
Maybe something that honours the first two consoles? We had NES, SNES. Nintendo Entertainment Centre would have been cool if NEC hadn't already been taken.