Besides Ping, iTunes 10 brings a few aesthetic changes which some of you love, and some of you hate. Moving the buttons over there goes against everything OS X design is about. It’s an uncharacteristic move by Apple, unless they plan to move the buttons to the side for all of their applications, which doesn’t seem likely. Don’t worry though, there’s a super simple fix for this weird quirk if you want to bring uniformity back to OS X.
1. Quit iTunes.
2. Open Terminal (if you’re not familiar with it, it’s located under Applications > Utilities > Terminal)
3. Type or Paste the following into Terminal and then hit enter. “defaults write com.apple.iTunes full-window -1″
4. Open iTunes, and notice that balance has been restored.