Agree with all the above.
And it IS shiny and gadgety.
The main thing for me is not getting lost in and around strange cities.
eg 3 years ago I got completely lost in Karlsruhe, Germany. Weird foreign traffic signs and street names, and it was grey and overcast so I couldn't even tell which way was north !! Very frustrating.
This year, I had to get out of the centre of Barcelona, and I meandered slowly through the suburbs and along the beach to the highway, knowing where I was all the time, and at any time able to cut out straight to the highway and offski ! And if you DO miss a turning, you can easily see what's the best thing to do next.