Per breaking news on CNN that is just now hitting the wires, a federal judge has now ruled that "intelligent design"--aka barely-disguised "Young earth" creationism--cannot legally be taught in the Dover school system in Pennsylvania:

"Intelligent design" cannot be mentioned in biology classes in a Pennsylvania public school district, a federal judge said Tuesday, ruling in one of the biggest courtroom clashes on evolution since the 1925 Scopes trial.

Dover Area School Board members violated the Constitution when they ordered that its biology curriculum must include the notion that life on Earth was produced by an unidentified intelligent cause, U.S. District Judge John E. Jones III said.

Interestingly, the "heavenly deception" practiced by dominionists pushing "intelligent design" was a major factor in the ruling:

Several members repeatedly lied to cover their motives even while professing religious beliefs, he said.

EDIT:

Full court judgement here. The commentary is extremely damning in regards to "intelligent design", and the court document actually denotes how "intelligent design", much like "creation science" before it, is a thinly-veiled attempt to sneak young-earth creationism into the curriculum and how its main promoters are dominionists. We have a *very* legally solid document to use as legal precedent in fighting backdoor attempts to enter "intelligent design" into school curricula.