The Reality of iCloud Core Data Syncing
The Verge’s Ellis Hamburger talked to a bunch of developers in writing this extensive article about frustrations with iCloud’s Core Data syncing features, which are necessary for apps that need to do database-style syncing via iCloud (as opposed to document-style syncing, which works fine). Syncing is hard, but Apple needs to get it right if developers — and users — are to rely on iCloud integration.