I've come to the conclusion that technical loss of privacy is inevitable because customers don't care, and that when the you know what does eventually hit the fan the problem will have to be solved with regulation. There will be HIPAA/PCI type laws around home audio, location data, etc., and a renegotiation of wiretap and search and seizure laws. There may also be some legal limits on private data collection and retention.

Of course malicious hackers and secret parts of governments won't obey these laws. We are in some uncharted waters.