title: iCloud key-value store behaving like NSUserDefaults
body: <p>I'm not using the simulator. Everything seems to be working fine in code. I can read and write to NSUbiquitousKeyValueStore, and it persists data between app runs.</p>
  
  <pre><code>[[NSUbiquitousKeyValueStore defaultStore] synchronize]
  </code></pre>
  
  <p>returns TRUE. However, updates never arrive at other devices, and if I delete the app from one device and reinstall it, NSUbiquitousKeyValueStore is wiped clean. Essentially, it's behaving like an alias of NSUserDefaults. I have entitlements setup, and iCloud is enabled in the provisioning portal. My target settings have Enable iCloud and Key-Value Store checked, with "Use store with identifier" set to my apps bundle identifier. I have one entry in "Ubiquity Containers" that is also my bundle name. Is there something that I'm missing? Configuration? An initialization step? Thanks.</p>