I am still having an issue where the app will show me the seat map with empty seats but I cannot change... so I changed my seat with the AAngels in the AAdmirals Club at LAX yesterday...

Then, i got a little pop-up message on my iPhone telling me my BP was updated... when I opened it, my seat was CIRCLED pointing out that it was changed. Awesome. Loved it.

Until... I was boarding and when my BP scanned it had my old seat, gave an error and I had to go back to the gate agent and have them print out a hard copy boarding pass... Boo . I was quite surprised/excited that the electronic BP automatically updated but I suppose too good to be true that it would work seamlessly.