Upgraded to the GM from iOS 7 - never had any betas installed. Everything is (mostly) fine, except a lot of problems with the music app, particularly around creating/editing playlists. 1. If i try to create a playlist from my phone, after adding several songs, the "Done" button turns into the "Now Playing" arrow and I can't complete/finish/save the playlist. I have to force close the Music app, which discards the playlist. 2. I have a bunch of playlists stored in playlist folders in iTunes. These all sync fine to my iPhone, but I'm unable to edit any playlists in folders from my iPhone. The "Edit" and "Delete" buttons at the top of the playlists are grayed out for these playlists, when the work just fine for any playlists that are not stored in playlist folders. Swiping to delete a song does not work either. 3. Minor, but weird - I like how the playlists now show you the # of songs and the total time of the playlist. However, 3 or my 4 playlist folders have a completely arbitrary number of songs & total time that is nowhere near the amount in the playlist folder. The 4th folder shows neither total songs nor time. Is anyone else seeing this? I don't want to do a full restore if I don't have to.