Polish video game developer Nibris' Wii title Sadness has gone the way of the Duke it appears. GoNintendo noticed that the game's website has disappeared, although Nibris' website still has a splash page for the game. The domain name has apparently not been renewed, meaning it's now up for grabs.
We've known that the game wasn't happening unofficially, but this is some pretty telling evidence. Nibris has not made any announcement regarding the game yet, but I'd say we've got another case of vaporware on our hands.