1) Mainstream adoption of Augemented Reality. Between Pokemon Go and Snapchat, Augmented Reality has gone from industry "shiny object" to a much more commonplace, mainstream habit. And the secret? Entertainment versus selling. People weren't willing to go through the trouble of engaging with the technology just to watch glorified commercials, but they'll do it to see a video of their friends with funny hats on or to catch a Charmander.
2) New mobile behaviors. Part of the danger of Pokemon Go is that you use it while walking around. This is a surprisingly novel way for people to use their mobile phones, as many other kinds of mobile engagement are used during stolen moments of down time (commercials, between meetings, waiting for anything for more than 5 seconds) and often at least standing still. If not sitting. But with Pokemon Go, you are literally walking around with your eyes on your phone. And watching people do it is like watching a toddler take its first shaky steps. But maybe this will be the way an entire population learns to screen and walk at the same time. Or maybe this will be what ushers in mainstream adoption of Google glass