Effective, Reasonably Priced Conferencing Speech-to-Text?

DeafScribe writes: Every year during the holidays, many people in the deaf community lament the annual family gathering ritual because it means they sit around bored while hearing relatives jabber. This morning, I had the best one-on-one discussion with my mother in years courtesy of her iPhone and Siri; voice recognition is definitely improving. It would've been nice if conference-level speech-to-text had been available this evening for the family dinner. So how about it? Is group speech to text good enough now, and available at reasonable cost for a family dinner scenario?