Sure, since it's a software service thing the phone would need to talk to the service. I don't know if full-blown AtD would be necessary for this kind of featu

Sure, since it's a software service thing the phone would need to talk to the service. I don't know if full-blown AtD would be necessary for this kind of feature but with the existing language model it'd be pretty trivial to add a call to AtD to make this kind of thing possible.