Kato.im Launches Kato Teams, a Free Chat Platform for Businesses
techcrunch.com
techcrunch.com
I'm in love with a cat.
And ability to use the same account to work with multiple teams at the same time.
Also markdown support.
For what it's worth, the Kato team so far hasn't sent a single internal email over the history of the company. (We're distributed across ~15 cities.)