Facebook was supposed to be integrated into iOS 4?

As we know of Facebook and Apple in 2009 and 2010 worked on a joint project of Ping, that is, at the same time when the company engaged in the development of future Apple OS iOS 4. And it is rumored that one of the differences from previous versions of the OS was supposed to be the integration of client Facebook. Now it became known that this integration even had the place to be, but at the prototype stage. This information became known, after a network has information about the white iPhone prototype 4, which also operates under the control of a prototype operating system iOS 4. Unfortunately, it is not possible to know, what exactly is not included in the final release of this operating system still appear in the future, but that was postponed because of the low efficiency or unnecessary from the standpoint of developers.

Among other features that were removed from the published market iOS 4, reliably learned about the function of the direct video downloads in Facebook, which should testify about the same functions and images. But the function of a news line is never planned. But Facebook was supposed to integrate directly into the phone functional iPhone - in this case the device would receive the ability to view contacts in a social network and send messages. The system was supposed to have login Facebook, which would operate in parallel with the account in the AppStore.