Do we still need GPS when we can use Smartphone?

[dr. d]

I don't see the need for that anymore as long as the smart-phone serves the similar role

for me,
mine should speak. hirap kasi tignan yung small screen and still drive effectively.
"... after 100 meters, turn left... turn left now... turn left now, gosdamit!... tontow, you missed your turn! now we're adding 5 minutes more to your travel time. make a u-turn in 50 meters!"