ok, my next business card is going to say "Minister, High Council of Virtual Places" (with a foot note "and virtual responsibilities.")

Pretty clear though that if you are playing Pokemon Go, and your actual identity is attached to your account, then there is a way for Niantic to tell someone where your are right now, and where you have been.

Given enough adoption in the population, that data set could be used to illuminate organizations and memberships which might otherwise be considered classified. Both for players, and for non-players.[1]

[1] Examples are available in the literature where people using good OpSec were identified by employees who did not.