'Many military and transport aeroplanes were fitting INS based moving maps, using microfilmed charts, in the 1970s.
But they used to land with large errors a lot of the time, I know, I used to fix 'em.
Whilst on the whole I'm all for making pilot workload easier; just because something is all shiny and glassy and says Garmin on it, it only displays what is fed into it, if it gets crap in, you get crap out. It's just hi tec crap and the danger is that folk who aren't very techy minded will assume that it 'has to be right because it's shiny' rather than wondering why low tech map (which is never wrong) and hi tech gizmo don't match. Just my two pennorth.