I can see by a brief scan that this entire discussion has turned into the religion vs. nonreligion. Quaint.
I live within a five to ten minute drive of Dover, and I applaud their efforts to push the envelope. If anyone who is complaining doesn't know, ID doesn't mention any form of 'God', so all coorelations in that manner to religion is void. Additionally, religion is about faith. ID does not even hint at any sort of faith, and therefore completely unrelated to religion. Neither atheists nor the religious are able to prove existance or lack thereof, so once again, I see ID as a strength.
Far away from the religion aspect which I believe is mute, is the fact that school is ment to be enriching. What's wrong with teaching two conflicting theories and having discussion? I'd like to inform those from outside the local area that _that_ is how most of the higher-level classes in York are taught. I love the fact that evolution is being taught with an accompanying theory. I remember when I went through evolution, the teacher stood up in front of the class and stated "Now, before we begin, humans did not descend from apes - we have X more chromosomes." I heard that and was disgusted at how petty legal disputes can force the mouths of teachers.
Additionally, Dover has freakin stickers on every book and the chapter that ID is discussed in stating that it is a theory and is to be considered alongside evolution. So, finally, I beg people not to rush to make rash double standards about that is or is not a valid theory and actually think - much like high schoolers like me do.