I expect the really solid use case here will be voice interfaces to applications that don't suck. Something I am still surprised at is that vendors like Apple have yet to allow me to train the voice to text model so that it only responds to me and not someone else.

So local modelling (completely offline but per speaker aware and responsive), with a really flexible application API. Sort of the GTK or QT equivalent for voice interactions. Also custom naming, so instead of "Hey Siri" or "Hey Google" I could say, "Hey idiot" :-)

Definitely some interesting tech here.