Xcode installer hangs on closing iTunes

Xcode install hangs on closing iTunes, but iTunes isn't open. To remedy, open terminal and type killall iTunesHelper.

User Library Folder: Lion

Great post on how to get your library folder back.

http://reviews.cnet.com/8301-13727_7-20082044-263/os-x-lion-where-did-my-library-go/