I realize this is the F9 forum, so I'd like to talk about the possibility of a codeshare agreement with Icelandair on this new service:
http://www.denverpost.com/search/ci_18846550
I think if F9 could score a deal (Icelandair already codeshares with Alaska and JetBlue in the states, so there is some precedent), it would be a major victory for the airline. It would open up their frequent fliers to Europe which we've so desperately wanted (especially those that enjoyed the DL codeshare with Midwest). It would require a double connect for non DEN flyers to Europe, but for the right price and convenience could work well.