For one, I will be quite unhappy if the AA/US alliance falls apart. They began allowing the pooling of mileage to redeem awards this week, a great benefit to those of us who accrue mileage on both airlines. With only minimal date juggling, I was able to get 2 business class tickets to Thailand through US Airways on ANA, during the high season no less. It would have taken me considerably longer to accrue enough miles on only one of the lines.