Magic Leap’s long-awaited augmented reality headset finally debuted over a month ago, even if its $2,300 price tag makes it much too extravagant for most of us. Still, it’s a pretty big step forward for consumer-grade AR, and the company is betting big on developers to create the content library it needs. One such developer is Rovio, which announced it’s bringing its most popular game franchise — Angry Birds — to the platform.