This folder have some information about “Photo Streaming.” According to sources, it seems that Apple would help iPhone users to set up “Photo Streams” which any person can subscribe for. Sources also pointed out that they would also provide some privacy preferences which you can select. This will help other users to view your Streams only when you approve them.
With Photo Streams, you will also be allowed to “invite” other users to view your pictures as you take them and upload them to a service. This service looks like it is connected to MobileMe, and we speculate that “Media Stream” can be directly connected to “Find my Friends.” We think Find my Friends will be another aspect of Apple’s social network, a part of a free MobileMe, where you can choose to view your friends’ “Photo Streams” all on that same map. Apple has a patent on something called iGroups relating to this. This would clearly tie into the Mac and iOS photo app’s Places feature. From looking at the SDK, it looks like “Media Stream” could very well also have a plugin counterpart, like AirPlay, in 3rd party apps.