The AA efforts have been handicapped by unwillingness of one airline to codeshare the route to MIA lest it handicapped their own LHR service; BOS I heard strange murmurings about that self-same airline doing their best to boost their BOS service by hiving off the lower fare pax to route via MAN. DFW was okay for the numbers carried but was not the most effective hub for where AA's ambitions lay. ORD is curious in that they got the route despite BA howling - the double daily services were operated summer-only for 3 years but I don't think 2 767s is the way forward if they want capacity and frequency. JFK will see them use the AA hub, you know the hub the airline I've accidentally forgotten the name of somehow neglected to work out that they could send 767s into and get the pax onward via codeshares on AA's services (if it works, I fail to see how BA couldn't get it to work).