Please Apple, consider to address the issue of having Watch, iPhone and..Homepod respond simultaneously when calling "Hey Siri". It's a mess. You could put yourself one step forward intelligent assistants competitors by letting a user call "Siri" whatever they want (just by providing training for the new name on each device). We could use, for example, "Hey H.A.L.", "Hey computer", "Hey Steve/Tim", "Hey Pocahontas/Totoro" (for children), "Hey Watch", "Hey bi*ch/bast*rd" (for the angry ones among us), "Hey you (...play some Pink Floyd!)", "Hey Jude (...play some Beatles!)", "Hey Joe (...play some Jimi!), "Hey Gandalf", "Hey Marvin"...and so on.
I know I know you already spent a mountain of money for marketing Siri, well that could continue to be the service name...but c'mon, give the world a little freedom again...one single name per device should be enough.
It also have the advantage to privacy that, when outside in a place with strangers, no one else could know your magic name to activate your assistant (I'd go for "Hey Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch" but, wtf, now I told you).