I currently have a 16 GB iPhone 4 and before I updated to iOS 5 it said my device had 14.3 GB free because iOS and other things take up room. After upgrading to iOS 5 it says I only have 13.4 GB free. Is there a reason for this or is it just a bug? It doesnt actually bother me cause including everything, like music and apps, I still have 10.1 GB free I was just wondering.