I have tried several ways and have searched the 8830 docs, but don't find a way to access memos and other functions while the phone is off. I would like to be able to read PDF files, listen to MP3's and other things while on a commercial airliner.

go into manage connections, and set the network to off, that should work.., just remember to turn it on when you get off the plane!!

be careful because many of flight attendents will not believe your device is off. i posted on here before that i had a nice friendly chat with an air marshal who instructed me to remove the battery from my device.