WebRTC is very promising. "Hello" in Firefox is surprising stable (although I know a lot of people don't like Mozilla partnering with Telefonica) but there are occasions my remote teammates would find using Hello give them better screen resolution and latency. In one case, I was able to do real-time troubleshoot with an end-user problem over "Hello." Typically we'd use Skype or Webex.

Does anyone know whether WebRTC is used in HipChat and Slack video feature?