Phillip Johnson explicates the state of the intelligent design movement in biology on the Discovery Institute website. It's worth reading. From the end:
The goal of the Intelligent Design Movement is to achieve an open philosophy of science that permits consideration of any explanations toward which the evidence may be pointing. This is different from the current restrictive philosophy that rules out of consideration the possibility that a creator may be responsible for our existence, even if the evidence is pointing in that general direction. Whether or not it is successful, the IDM has made a contribution to a better understanding of reality. It tries to raise the fundamental question of creation, by visibly making evolutionary naturalism the subject of critical investigation based on evidence, rather than allowing it to rule by default as the unquestioned philosophical position to which science must by definition adhere. For now the mandarins who speak for science have the support of the courts and the media in their campaign of excluding any challenge to their basic premise from public education and from scientific consideration.