The PokemonGo craze is with us too. DGSs are very into it which makes the car journeys and walks we drag them out to much more interesting. They will walk miles now getting excited about eggs, gyms, characters evolving etc. The problem for them, is that it is very hard on the phone battery so they are having to learn the difficult art of restricting their play. DGS1 showed incredible maturity by noting he had only 14% left on the phone, estimating how far away to go to the next Stop, and turning the phone off until he got there.
I haven't indulged yet myself, but the running commentary makes me feel like an expert. It has been a life saver this long school holiday when we have had to entertain the boys almost every day.