Interesting article in today's Houston Chronicle. http://www.chron.com/cs/CDA/story.hts/business/740879.
A couple of points:
1) Bethune's reaction to CO/NW settlement: "I'm going to get a big double scotch and get a big cigar, put my feet up and celebrate."
2) Bethune sees the UA/US merger as all but dead.
3) The CO/NW alliance is in effect at least through 2025, unless NW merges with another airline, at which time either airline can end the alliance without penalty.