Taxi Charts
Six or seven years ago I flew an HS125 with JeppView with the Collins ProLine 21 cockpit display. This showed GPS derived aircraft position on the PFD superimposed on the Jepp Area, Let Down, and Taxi Charts. The NHP had this displayed on his MFD as appropriate.
I even have this facility on a a 4 seat Cessna with the same information displayed on the Garmin screen.
The B744 has a Honeywell glass cockpit, may not be JeppView compatible. If BA invested in this system it would probably eliminate taxiing errors such as this as your present position is shown in real time.
Such investment would have saved a whole lot of money in this incident.
My IPad also has this facility using SkyDemon at about 150 quid a year!!