I know there's the option "Sync with this iPhone over Wi-Fi" option, but is this only for syncing and not backing up? It seems like as soon as I try to back up a phone that's connected to iTunes over wireless, it starts to back up and then the device disappears from iTunes. I just wanted to confirm that you can not back up devices over wireless using iTunes. Anyone else able to verify/confirm this? Or is it just me for some reason?