Niantic‘s latest AR-based walking-encouragement app, Harry Potter: Wizards Unite, launched unexpectedly today. It was supposed to roll out Friday, but hey, we’re not complaining. Here’s what we thought after the first few hours using the app. I discovered the app was live during a routine trip to get my car inspected — sitting in the Toyota waiting room isn’t a terribly enriching experience, so I consulted my phone. I immediately tried to download it and begin looking for Nifflers in the rubberized mat display, but I to wait until I got back to my home Wi-Fi connection before it would reliably…

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