Though it isn't as official as a press release, Bandai Namco Games' product page for Beautiful Katamari lists the Nintendo Wii as a supported platform, leaving the waggle-fied version's release date at "to be determined."
Rumors about Beautiful Katamari coming to the Wii have been fluttering around our heads, like ill-behaved imps, since the title was first announced, poking us with miniature spears and doing their damndest to pull our attention away from our daily tasks. To be honest, it's hard for us to get excited about the gossip anymore.
Four Katamari Damacy titles have already been released or announced since the original game's debut only three years ago, lending oversaturation comparisons between the action puzzler and Capcom's Viewtiful Joe. Mixed impressions for Me and My Katamari on the PSP and Beautiful Katamari's Xbox 360 demo haven't hyped us for a potential Prince of Cosmos appearance on the Wii either.
[Update 1: Info pertaining to the Wii has since been removed from the product page, suggesting that its inclusion was either a misinformed error on Bandai Namco Games' part or a detail that the developer is still waiting to officially announce. You decide.]