TLD,
It's been a while since I took mine, but at the time you were allowed to bring a calculator with no memory, an E6b or similar plotter/slide rule, and you were also allowed to bring in certain approved electronic flight computers. In order to be approved, they had to not have memory. You weren't allowed to bring in any reference books.
I would be very surprised if you were allowed to bring in anything which has the capability of storing documents, such as an I-pad, I-phone, tablet, etc.