I've used roaming wi-fi hotspots and so has my wife (as passengers) when we have work to do but also need to travel to something. Let's say you have an urgent report to finish by 6pm, but you also have dinner with the in-laws at 6pm and you'll be in traffic for 1.5 hours - while I'm driving she can work, and vice-versa. It's incredibly helpful for busy people.
GPS might be useful if for example you parked on a Saturday morning, drove off, came back at lunch, met your wife, and then gave her the keys while you went in for your haircut. She might need to find the car to dump shopping/get the wallet you accidentally left in the car etc etc.
As for tracking the car - it's not necessarily so you can get it back. I had a GPS locator on one of my old motorbikes, If it was stolen I didn't want it back, but I wanted to be able to catch the worthless sack of crap that stole it.
[/quote]
I can't argue with your hotspot statement but to say that if I try to work in a moving vehicle, it better have vomit-resistant seats and plenty of air fresheners...
You raise a good point about when leaving the car for another family member to pick up. Papa Noto and I do that ALL the time. I'll be at work and leave it in the parking lot, but it's a big parking lot and I don't always get the same parking spot (or parking area) depending on how busy it is.
...then again, my dad wouldn't be the one to use the app any way
As for catching the worthless-sack-of-crap, as gratifying as that may be, typically, the car is found and cannot be linked to said sack-of-crap, after which, your vehicle is returned to you with numerous bodily fluids that you do not want in your car. See:
http://www.calgarysun.com/2014/08/18/selfie-incrimination--stolen-car-victim-tracks-x-rated-clues-on-camera-memory-card
