Still using paper Jepps, you couldn't really use a lap top for approach plates, not on a Boeing without a table anyway!
The laptops are good, with wireless connections in the crew rooms and wired LAN as backup and dialup for use over the net.
I would guess that the manufacturers would eventually put some sort of display where the plate holders by the side windows are, or centrally to call up approach/ departure plates from an onboard database.
PP