The HTC 10 finally became official earlier today, as you may know, following weeks upon weeks of leaks. One thing about the phone that wasn't leaked, though, has to do with Apple's AirPlay.Specifically, it turns out that the HTC 10 features built-in native support for AirPlay, following in the footsteps of Xiaomi's Android-powered smartphones before it. There's just one big caveat: it's only for