... I tried deleting the whole back up and it now has nothing showing to back up under icloud not even camera roll. Just says icloud could not complete the back up. Tried exactly the same thing on other iphone to see if it makes any difference. After deleting the back up it carries on backing up both automatically and manually. ...
The blue circle just means that its a new app.
My iCloud backup hasn't gone through yet. I don't know if its an iOS 7 issue, or whether I just don't have enough iCloud space.