HT4486: iCloud: My Photo Stream FAQLearn about iCloud: My Photo Stream FAQ
Currently Being ModeratedFeb 12, 2013 11:38 AM (in response to Meyia)
If these are older photos that are missing it may be because only photos added after turning on photo stream are added. If you are connecting a new device to an existing photo stream, it's probably because photo stream only keeps photos from the last 30 days. After that they are deleted from photo stream (and are no longer available to newly connected devices), but will remain on any devices that have already received them.