The AAAS web site has a wonderful profile of Hana and Francisco Ayala, along with an interview with both on video. Dr. Francisco Ayala states that ID is not science, but it is also very bad theology. He calls evolution the unifying principle of biology, and calls intelligent design “blasphemy.”
This is worthwhile listening for anyone who is really interested in this issue. I strongly recommend listening to it. There is a written summary here.