I disagree. No one can do what Apple can do for 'cloud services' so they are taking care of that.
Now if any developer wants to build 'such-and-such' feature, the cloud is ready to sync that data.
Another example: Rich Text Edit: Lots of apps can use that one! I really like what Apple is doing to take care of building services that we can all use, vs. keeping behind some walled garden where we have to either pay to use it or build it ourselves.