With release of Karmic Koala, in Ubuntu class-room ( dated Nov 6 1700 UTC ) there was 'AskMark' class where you could ask questions to Mark Shuttleworth directly.
If you missed it, here is the log. It contains interesting answer from Mark Shuttleworth himself. Questions are on topics like Chrome OS, Marketing, Canonical's profit, LoCo, new artwork, Ubuntu's future, favorite app, Mark's daily life, phone type, his money and so on.
Click here to read yourself.