Ok guys... I had my iPhone 5 with OS 6 since I bought it in February 2013. Never had a problem with it. Until finally last week I upgraded to OS7 because some applications needed me to. The day after the upgrade I did a back up in my iMac, all data. Today I woke up, power up the phone and all my data gone, all my contacts gone. Last Saturday I met this awesome girl and thanks got I sent her a text on Sunday because her phone number was gone too. Too suspicious that I am running an OS just fine for over a year and all of the sudden after updating, for not reason I lose most of my data... phone data. Obviously, Apple has some premeditated bugs for you to use their iCloud and stuff. A few years ago I had 4 12" Powerbooks, all of them had motherboard problems a month before or after the warranty expired. I had a friend who had a mac repair shop and he was so upset about the issue that he falsified the warranty so I could get always a new mother board. I still have one of those 12" Powerbooks with the new motherboard up and running. But is a fact, bug are inserted into the OS by Apple. I have been using Apple products for 25 years and I see that pattern happening.