Google has formally promised EU regulators that it won't use future Fitbit data for advertising, boosting chances for approval of the pending merger (GOOG, FIT)

· Google has pledged to not use Fitbit user data for ad-targeting purposes, Google has confirmed to Business Insider.
· Google had already said as much when its plans to acquire Fitbit were announced, but this more formal proposal to regulators makes it more likely the merger will be approved.
· European regulators must...