I booked a NW ticket from TUS to EWR for the CMDIII. The flights are all CO operated codeshares. I liked the NW $198 fare a lot better then the lowest available CO fare, $358, for the same flights!
On the 18th I got the Platinum EUA's for my trip on the 23rd, including the often difficult IAH-EWR segment, this morning I got the upgrade for Tuesday's flight from EWR to IAH on the 777