I just found a new iPad app for the Boeing 737NG in the appstore.
It's a very interesting way to brush up your system knowledge, because they have almost 600 multiple choiche questions on all different systems.
You can also train your QRH memory items, non-normal maneuvers and flight patterns.
I think its a great tool and asset to the 737NG pilot.
And since the price is quite modest I think it's worth all cents of it
Do you have any experience with this app or any other app on those subjects, or other suggestions please share them here.