Often acquisitions are done for talent more than product. Other times its because the company being acquired fills out a need for the parent company that they can't or don't want to fill internally. i.e. Why spend resources developing a competing product internally when you can add another company that does it better. So its a legitimate question that deserves an answer to Rapportive customers.

I think he means: Will we have to create a LinkedIn account to continue to use Rapportive?

Personally, I have no intention of doing that, and I will miss your functionality.