The NBA's already cranked up its virtual reality output, and now it's taking baby steps into augmented reality too. The league's new iPhone game lets you play virtual pop-a-shot outdoors, which is as straightforward as it sounds. Just download the "NBA AR" app, point your phone at a chosen spot, and start shooting hoops on a virtual backboard and court. You'll have to frantically flick your iPhone, though, as there's a 30-second time limit on each round. When you're done, you can share your high score on social media, iMessage, and email -- and check how you stack up on the in-game leaderboard. NBA AR is available for free right now on the App Store.