Not far off getting an iPad with Sky Demon (funds permitting)... but..
If I'm VFR I will still look out of the window and apart from looking for traffic will check that I am where I think I am from time to time..
If I'm IFR I will still have all the boxes on, tuned, idented and check that what they are telling me agrees with the GPS
If there seems to be a disagreement then I'll do something about it!
Why would I not use all of the information I have available?