The post reads like PR. But what I found interesting is just how deeply synchronous and asynchronous communication are intertwined. This may be obvious to many of you, but for me I have always wondered why so many communication channels coexist (without any friction whatsoever) and what specific human purpose they all serve - e.g. when/why I send email, voice call & SMS? (not including the many proprietary ones).

Why a pure messaging app (like Whatsapp) wants to do voice, and why a pure voice app (like Viber) started doing messaging. Perhaps, both are needed within the same app to make it all work - but then why don't they do email? Why not have an app that calls, messages and mails? :)

Well smartphones are probably that app - they are a great communication tool just because they enable SMS, email and voice call together (all in the same seamless package).

Would love to get some thoughts about where you think this app sits in the communication app spectrum - what need it fulfills (I can't see using it, because it does nothing for me). But generally speaking, I'd love to discuss communication apps! :)