Also, is a follow-up to "Founders At Work" planned? It's a really inspirational book, and I am sure there is a huge new crop of potential subjects from the last three years of ups and downs in the startup space.
One of the things I liked about the original is that it wasn't just in a limited time period, so you could see how things worked differently in various time periods.
http://news.ycombinator.com/item?id=1113661