If you're curious, check out https://www.foreflight.com/, it's available from the app store and is marketed towards GA pilots. I've used it with some success on a domestic US flight with the inflight WIFI.
EDIT: I just checked ForeFlight had a version update on 4/27. I doubt American is using the same software on their tablets, but then again you never know.
EDIT: I just checked ForeFlight had a version update on 4/27. I doubt American is using the same software on their tablets, but then again you never know.