My entire library is set up on my iTunes 9.1.1 (Installed on Windows), and I did the iOS 4 upgrade (successfully) with an OSX VM. Restoring the backup I made before was good for my contacts, settings, what not, but naturally my music and applications were not restored. Moving my entire library to the OSX VM would be painfully slowly, and syncing over SMB shares is for some reason impossible, so I wonder if there is any way to sync my iPhone with the Windows based iTunes, after upgrading. I imagine the restriction is software based alone, and could be circumvented, but I could be wrong. Has anyone researched this yet?