My initial thoughts were about combining web browsing history and internet usage with location information, but you're right--a lot of analysis could be done pu

My initial thoughts were about combining web browsing history and internet usage with location information, but you're right--a lot of analysis could be done purely with your location history and your personal information that the telco has on file. That analysis is much less preventable, short of not using mobile telcos. This sort of thing really should be opt-in--otherwise, the by-product (personal data) will become the business, and the mobile service will move towards being merely a means to that end.