Philip K. Dick was better than Nostrodamus at presaging the future
In his short story "The Minority Report" PKD predicted targeted advertising based on the ability to know specifically who was nearby the holgraphic advert projector.
Steve Jobs liked the short story/bad movie so much that he built the iPhone specifically to collect the GIS location data so Apple could sell it to advertisers, more than likely so the advertisers could target the locations of signs and billboards, not to mention the value of knowing the number of people who spent ridiculous money on an iPhone who walk through a particular area or route.
When NFC (Near field communications) comes to all phones, you can bet the intrusive nature of advertising will become so granular as to send personally targeted ads and discount offers directly to your phone if not on a holographic display.
All of this data is worth so much money it would boggle your mind, let alone the privacy and personal rights issues.
Jobs, AT&T & Verizon should PAY US to use the damnable things instead of us paying them.
I'm going to predict a few things myself right now.
The makers of CrapCleaner are probably hard at work making an app that will scrub your iPhone/iPad as clean as a whistle;
Jobs will be hard at work making these files impossible to remove;
Sales of aluminium Faraday cases for iPhones wil skyrocket;
ALL Security/Police/Military agencies worldwide will be banning anything with an "i" from being used internally whilst simultaneously try to figure out how to tap this information from anyones phone via satellite/cellular/you name it wireless network.
Privacy activists will whine while they are on their Apple Information Stealing Device.
Big Business will give Jobs BILLIONS to make sure his products collect even more information without our knowledge or permission.
By the way, my phone can barely text and I like it that way.
Reality is a lot more scary than fiction, paranoia is not a mental disorder only a defense mechanisim for the pragmatic.