As of today, we still have 4.x systems running, iOS 5 is still not real minority, so I can’t just use iOS 6 API.
After reading several articles and trying every framework and sample code I could find my verdict is the same, iOS is not ready for Core Data iCloud yet. The currently available iOS versions are not behaving the same way so either it’s a testing nightmare or just a nightmare, developers can choose.
The only solution I could think of to switch to document based application, but with that I would lose the key features I like in Core Data.
Comments and hints are welcome as always.