> me as user

This becomes more complicated when Siri is the interface on a homepod in a shared area. Who's data and preferences should be used? Ideally it would recognise different voices and give that person's data priority, but how much can/should be shared between users? Where are these data - they shouldn't be in the homepod, so it would have to task the phone with finding the answer. I'm sure something good could be done here, but it wouldn't be easy.

If I'm not mistaken, it recognises voices already? At least once I had it tell me it didn't recognize my voice and couldn't do a thing I requested.

My father in law's iPad responds to me, and my phone to him almost every time either of us say 'hey Siri'.

These are called Personal Requests and are already handled as a use case by HomePod.