Is age an issue?
hvs: I don't require applicants to have memorized frameworks, APIs, and other implementation-specific details in my interviews.  I ask general programming/computer science questions that get to their level of knowledge.  I also have them do a programming test before they come to the interview, and allow them to do it in the language they prefer.  Age generally hasn't been an issue, but most applicants are younger.I think this will become a bigger and bigger issue as the programming industry really starts to mature and you have a large number of developers that never wanted to move into management.