@techgeek:
EGPWS may have gotten a lot smarter than I remember it to be... but I think that the concept I proposed is a good deal "stronger" in the technical sense: that is, more restrictive.
If I understand correctly, EGWPS would not inherently warn of a "hot" landing coming in too high/fast (again, I may not understand how the systems work these days).
The "strong" warning system (which could be realized in the EGPWS, or any other convenient site in the avionics) could evaluate the full stabilized approach criteria selected by the appropriate authority (airline, certifying agency, etc.), including vertical and lateral deviations from ideal approach path, airspeed, and perhaps engine power range.
This would, of course, be more complex than a "too low/slow" warning.
@TWT: It'd be designed to be "always on" like the gear warning
