 Ex-wife of Bill Gates says she's going to step down as the co-chairman of the Gates Foundation. They've been divorced for, what, three years or so? Mm-hmm. When he first started making a lot of dough 20-some, 30 years ago, whenever it was, she became the co-chair with her husband. But now she says... She helped found it. Yeah, right, exactly. Anyway, she said, quote, I'm immensely proud of the foundation that Bill and I built together...