I just read an intriguing post from Jens on FB.
I reckon it was related to Thred if you read it in context. He's pitting Thred tech against FB at Work tech if you read the link as I did.
If our biggest threat is indeed FB then I think we may be on a winner here.. Acquisition possibility always a chance. The key word is "Ex"..
From Jens:
Interesting product from @Facebook It includes the messenger as well. Wonder how it will compare to ex. @SlackHQ work.fb.com