Bigger disaster, The Last Airbender, or Microsoft's Kin?

I was sure the disaster of the day would be Microsoft's Kin, which was canceled after apparently selling only 500 phones despite a massive ad campaign.

But Roger Ebert starts off his review of The Last Airbender by saying it "is an agonizing experience in every category I can think of and others still waiting to be invented," and gets more vicious from there, even savaging the child actors. (I was never interested in a story about a kid with an arrow on his head, anyway.) Via.