On a tangent, @mg on Medium suggested the idea of iMessage as a platform[1]. No one responded on HN[2] when I linked it though, so I don't think it has much traction.<p>[1] <a href="https://medium.com/@mg/there-s-a-chat-for-that-apple-s-biggest-platform-opportunity-yet-19d5b1870857" rel="nofollow">https://medium.com/@mg/there-s-a-chat-for-that-apple-s-bigge...</a><p>[2] <a href="https://news.ycombinator.com/item?id=9765818" rel="nofollow">https://news.ycombinator.com/item?id=9765818</a>