At this point, Apple will still be called to task by the U.S. government as well as several other governments. In the end, I expect they will be required to have some sort of opt-in/opt-out switch on whether any of this data, anonymized or not, is sent back to the mothership. I expect similar requirements for other phone vendors.

The zillion dollar question for me is whether this will ultimately be an opt-in system or an opt-out system. My guess is there will be a united front from the vendors to push for opt-out, and that will probably win in the U.S., but not necessarily other countries.