My effort to confirm this with sources has been hampered by the fact that I don't have any sources. I wish I did, because I'd love to get this scoop. This is the biggest celebrity gossip involving a man in his '70s since Anna Nicole Smith took a husband.
If it has been reported anywhere this evening that Buffett is off the market, nobody told Wikipedia yet.
Alleged congratulations to Mr. and Mrs. Buffett.
He's 76, she's 60. Yawn.