Based on my testing, it looks like the servers are still severly overloaded with new users. It has taken up to 12 hours for any changes made on my iPhone 5S to reach my iPad 3 or iMac across any of the iCloud modules.
Based on my testing, it looks like the servers are still severly overloaded with new users. It has taken up to 12 hours for any changes made on my iPhone 5S to reach my iPad 3 or iMac across any of the iCloud modules.