The HomePod firmware, which Apple itself “accidentally” leaked, has been a treasure trove of clues ironically for the iPhone 8 rather than the speaker. Because of that, we’ve gotten whiff of what is internally called Pearl ID, which still has to have a buzzword name. For now, “3D face recognition” will have to suffice. According to the latest dissection iPhone 8-related code, Pearl ID authentication can be used for almost anything. That is, except for making payments.