Robert T. Pennock is an evolutionary scientist and philosopher of science at Michigan State University. He is also the author of a very good book entitled Tower of Babel: The Evidence against the New Creationism.
In a recent Michigan Messenger editorial, Pennock tells it like it is:
...ID is not science but just creationism in a new disguise. It is no surprise that "Expelled" says nothing about the "science" of ID besides the claim that God is responsible for life, for ID has no positive evidence to present. Like previous forms of creationism, ID is nothing more than an attempt to poke holes in evolution. Their arguments have been dissected and dismissed. The truth is, ID wasn't expelled; it flunked out.
I urge you to read
the rest of Pennock's tremendous editorial.