7. Fix iCloud Core Synching
I don't use iCloud a lot. My free 5GB of space really just backs up my iPhone and that's about it. I don't use it because I use other sync services and because figuring out how to use the thing isn't nearly as easy as Steve Jobs said it would be.
I'd like to bring over contacts and calendar data, say from Google, and then have it sync with iCloud; but every time I do that, I end up with a God-awful amount of duplicates on all devices and services and it shouldn't work that way.
Apple isn't the only one that's having trouble with its core sync capabilities. Many third-party developers are in the same boat. They have simply given up on using iCloud and have either stripped the features they wanted to build in with it out, or have switched to another service. This needs to get resolved in both iOS and OS X, and sooner rather than later.