I realize this does not concern OC, but I think this will interest Iowa residents.
See the Colorado Bureau of Investigations page http://cbi.state.co.us/ic/Reciprocity.html
Because (a) Iowa now recognizes Colorado CC permits and (b) that is the only requirement for Colorado to recognize the Iowa permits of Iowa residents, it's a done deal. Easy!
Also updated over at Handgunlaw.us. I thought there were other states that had the similiar"you recognize me, I'll recognize you" law(other than FL and CO).