I found out today while traveling that the Palladium card does not give access to American Airlines Admirals Club.

Also apparently Chase is supposed to mail me a Priority Pass lounge number / card within 2 weeks of receiving the Palladium card.

We walked into a Priority Pass lounge and the attendant had to call in to confirm that we could access the lounge. Showing the Palladium card to her did not automatically gain us entry.

You can check participating lounges here: www.prioritypass.com. There's an iPhone, android, blackberry app to look up nearby lounges.