> I completely suck at typing on a mobile phone

So do I. That's why we still use Slack. But one of my co-founders is into sales and constantly on the go, and while travelling, sometimes the signal is flaky on his smart phone. Thats when he really cribs and tries to get us to go back to whatsapp :)

Of course, we won't move until whatsapp improves desktop experience and bridges at least some integrations, but I think it's highly possible for them to do it if they want to.