It looks more and more like cell phone companies are out to destroy what personal privacy we all have left. This story links to several accounts of how I-Phone calls and texts can be monitored by outsiders:
http://thenextweb.com/apple/2011/12/01/references-to-data-logging-software-carrier-iq-have-been-found-on-apples-ios/
Yet, while this is going on we have several large banks encouraging people to "bank by phone" which means entering in private account and personal information, along with checks and debit card transactions. So if "big brother" and most likely advanced hackers are watching and listening to your every move on your advanced cell phone, how long will you have all of your money and your identity?
Personally, I'm still not planning to use my phone for any transactions.