I think it seems unlikely because we all think of BillG as a business man and not a hacker. Maybe I should only speak for myself, but the thought of him tinkering away into the early morning on his new site is such a wonderful juxtaposition of my image of him.
But remember, Bill Gates started out as a hacker. He spent his whole high school days learning on a computer his Mom's Club purchased for their kids. He says he was probably one of 50 kids in the country that had that much access to a computer in his High School days.