Will it take off as a general consumer product this time? Probably, for some (unfortunately).
It will create a whole new class of distracted people in traffic, that's for sure. Someone lost in a smartphone screen is at least visually recognisable (“Better look out for that smombie about to cross…”), but someone dutifully following Google Maps directions on one of these could actually look like they are aware of their surroundings, whilst their full attention is fixed on the little map widget.