Use case is essentially that there are times when I'll make a quick decision based upon where my wife is. I could be more organised and use Trusted Contacts 5

Use case is essentially that there are times when I'll make a quick decision based upon where my wife is. I could be more organised and use Trusted Contacts 5 minutes before I want to know the answer, but I'm typically not. Thinking commute -- train then long walk home -- if convenient I'd rather share a lift than walk. Not the best example as I really should walk, but nonetheless. With the gym scenario -- I know the days of week, and rough time, she'll be there, so not the best. In that case it's not the full screen pop-up that's the problem, just the hard-coded 5 minute delay. Better example: early evenings, I'd like to know if she's working late or driving home. Without requiring that I interrupt her. If I SMS and she's driving, she has to break the law to respond. If I call (or SMS) and she's still working, that's disruptive. If I use Trusted Contacts and she's still working, also disruptive. I'd never really thought about this stuff before the Google Maps article, and some of the discussion here -- it feels like my use case isn't that uncommon a thing. I may look at some of those family / kid-tracker applications, though last time I reviewed the field there they felt a bit clunky and overly intrusive.