A new piece of HTML code found in Apple's upcoming icloud service, which gives away that Apple is working on integration with a social network or even your own social network. The Find My Friends option once you people "follow" their back and followed. There is also an option to block people. This could indicate a combination of your contact list and followers in Twitter account that you immediately in iOS 5 can link to your profile. More likely is that it is about sharing your location.
