Yes. Having acquired Gnip, Twitter can now offer the same services that DataSift offers. So, Twitter terminates their "partnership" with DataSift, and all of D

Yes. Having acquired Gnip, Twitter can now offer the same services that DataSift offers. So, Twitter terminates their "partnership" with DataSift, and all of DataSift's customers (i.e. the market that DataSift spent money and effort getting "nice and established", educating potential customers, helping them figure out how to make use of the data, etc.) who want to continue benefitting from those services will now migrate to Twitter/Gnip. I bet Twitter/Gnip will come out with some tool to make it ultra-easy for DataSift's customers to migrate across.