Just a heads up for anybody with an app in the store that saves any kind of data to its documents directory. My first update was posted to the store today, and I have had a few users report that their data is lost after an update. I know that this does not always happen, as I was able to update the app on my personal phone (using the App Store app on the phone) without losing data, but at least one user followed the exact same process and did lose their data. So far I've only had three users email me about this, but the update has only been out for about 6 hours. Hopefully it isn't a widespread issue.