Yes I do have a bluetooth GPS I can chuck on the dash and feed data to my tablet running other mapping products. Would I choose to use this as my primary nav system? No.
I wonder why not?
It's miles less error prone and more accurate than map reading.
The only other option is pure VOR tracking but that often results in a somewhat cramped routing style
And not a lot of accuracy, once close to the VOR or too far away to pick it up (which at GA levels, say 2400ft, is not all that far at all).