Initially didn't know what to make of this given how highly I think of Carsabi and how new Ark was. Put the pieces together with the FB aqui-hire http://techcrunch.com/2012/10/01/facebook-acqhires-founders-...
and now I think it's probably beneficial for all parties, but not as big of a deal as a full acquisition (by a mile).
Love to see Ark pursuing other verticals though!