[i5-2520M]

Look up some alternative SMS clients on the Play Store and you will see there is a market for it. People on forums have been also complaining about there being no way to do this with RCS.

[Grustaf]

Sure, there are all kinds of people in the world, but would that group represent more or leas than 1% of users?

[DirkH]

You wouldn't know how much demand there could be till you build it, iterate and innovate. You can't ever do that if regulations stifle it completely.

I don't care. But I'd rather live in a world where tinkerers can tinker away since I imagine they'll be able to make something I would care about later as a consumer.

[i5-2520M]

My best guess is probably goint to be more than 1% in markets where SMS is commonly used. Not by much, but more than 1%. Maybe 2-3% tops.