Of course Ubuntu/Linux is my latest preoccupation (apart from clipmarks) and when I read he was behind it, and was described as an 'Entrepreneur' so I had to find out more. There are more than a few types of 'Entrepreneur' when I saw that a few years ago he was most famous for going with the Russians to the International Space Station, (It's easy to forget much of what happened more than 7 years ago) I thought it would even have made the Russians laugh, and that isn't easy.
He's involved in community projects in South Africa, concerning Education and free software, to allow greater access to learning, and computer technology. He's also been to Antarctica aboard a Russian Icebreaker.