I think that product was too expensive to offer to the masses. It needed huge honking neural nets that cost too much to run. In the meantime there are open TTS

I think that product was too expensive to offer to the masses. It needed huge honking neural nets that cost too much to run. In the meantime there are open TTS engines with similar quality and language models that can hold better conversation. They don't have a monopoly on that chat-bot tech anymore.