I'm hoping someone has some light to shed on this. I've always used iCloud backup, which includes the camera roll. I also use photo stream. I'm excited to use iCloud Photo Library, and I have it enabled, but now, I'm out of storage (which I've already paid for more of) when I try to backup using iCloud (because iCloud Photo Library is using the space). Anyone find a solution to this? The simple idea would be to be able to exclude camera roll from backup. Thought?