I was in on the beta for this and I just couldn't figure out what to use it for. We use Google Docs, Trello, Confluence and Basecamp. I can't see where it fits

I was in on the beta for this and I just couldn't figure out what to use it for. We use Google Docs, Trello, Confluence and Basecamp. I can't see where it fits with any of those. Interested to see where this goes.