A lot of discussion here about memorizing the programming questions, but I think the most interesting part of this is when he turned the tables at the Do You Have Any Questions For Me stage and really interviewed them.
I haven't asked anyone a programming questions like he did, but I did ask some tough questions about the team, work environment, management style, company goals (looking for a quick exit? in for the long haul? etc.) at my last job interview (after some good friends gave me the advice) and it both gave me a lot of insight into the company and team that I was considering working for, and I think it impressed them that I was thinking about those things.
In short, know what you want from a team, manager, and company, and take time to interview the people interviewing you to make sure they have what you are looking for.
I haven't asked anyone a programming questions like he did, but I did ask some tough questions about the team, work environment, management style, company goals (looking for a quick exit? in for the long haul? etc.) at my last job interview (after some good friends gave me the advice) and it both gave me a lot of insight into the company and team that I was considering working for, and I think it impressed them that I was thinking about those things.
In short, know what you want from a team, manager, and company, and take time to interview the people interviewing you to make sure they have what you are looking for.