[codefylabs]

>>>"(and hipchat, and jive, and whatsapp, and groupme, and skype, and who-knows-what-else.. ugh)"

I agree with your sentiment at the end of this sentence. I've gone through this as an individual. Sometimes you just need to cut the slack and regroup using a standard toolset for the organization (or group, or sub-group, etc.). Otherwise, org-wide (or group-wide) communication simply becomes too difficult. Or "fragmented", to borrow your diction.

I haven't used Slack or Screenhero, but I hope Screenhero thought through some of these potential "second order" effects on their customers that the acquisition would have before signing on the solid line. Hopefully the founders didn't just have $$$ in their eyes.

That's one of the primary risks of using/adopting a new service/system/product, in my view. Will the people building the product, and actively selling people on the idea, actually defend the product once "acquisition is in the air"...