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.
There is a bunch of new stuff including the built in dictionary, and all the BETA debug code. It doesn't really surprise me.
Even in GM the release will more then likely be larger then iOS 4 but you will probably regain some space by the time they are done cleaning things up.