Jeni...Bill Gates? -- nice! Can we use Steve Jobs? Or since he had cancer is he now considered inferior? People can be so silly.
And Kevin, you're naughty, but I may use the first one with close friends.
I still feel we are "not sharing that information" will most likely be our standard answer. Though people will be able to tell when the little one arrives, as Bill and I look drastically different (think Jason and Adrian but bigger...haha...sorry J&A).
Oh and the Heffernan's, the question about the race of the baby reminds me of when we used my niece as our egg donor in India a couple years ago. How's this??? People actually thought I was the sperm donor! I looked at them like they were NUTS and did another squirmy dance. People, did you take biology or listen at all during sex education? Last time I checked having children with family members doesn't end up so well.
And Mark, I love your comment. Your children are your children, biologically connected or not. I've always said I'd take someone's baby off the street if they offered it to me. For some reason that hasn't happened yet...though there's still time.