Iphone 8 release – new tech

With the release of the iPhone 8 and Iphone X new technologies became available. What will facial recognition/control offer to my system. What is of interest are the possibilities of this tech (especially in low light – critical for dance). Could this be used to control synth parameters ? trigger samples ? Will the device become even more integral in the performance mode ? Time will tell, as developers look for ways to purpose this functionality.