Some companies have used it for language tutoring. There are a lot of things a language learner with a keyboard and mouse can productively do during a video chat that isn't built into hangouts, e.g. looking up words, saving vocab items, etc... And that's just one use case.
What this change will do is chop off those offering free services at the knees and drive the premium services to Twilio, etc.
What this change will do is chop off those offering free services at the knees and drive the premium services to Twilio, etc.