iPhone can switched identities!

It seems that the iPhone had scored another first of its kind of disaster, swoop of contacts between users. How could such thing happen? The story indicate the user did an upgrade of the iOS which could mean something happened along the way. It must mean that some apple server been storage our contacts. Then there were more stories on the chinese papers. Users claimed it even happened over night! If that is the case it should mean that some apps running on the iPhone been sending and receiving contacts infomation. So far Apple remain silent on these. http://sph.straitstimes.com/BreakingNews/Singapore/Story/STIStory_794070.html http://news.omy.sg/News/Local%2BNews/Story/OMYStory201204301535-331283.html