Here's a PDF of the opinion, which just came down. I'm not sure which is more surprising: that it was Iowa, or that the opinion was unanimous. Pam has snippets. I, personally, can't wait for Rep. Steve King's (R-IA) reaction, which I'm sure will be priceless. I'll have more commentary later in the day -- I'm particularly pleased to see that the Iowa court recognized that laws which discriminate against gay and lesbian persons should be met with, at the very least, heightened scrutiny.
But seriously -- congratulations to Iowa for this great step forward towards equality, and to the gay, lesbian, and straight citizens of that state.