In the latest iOS 5 beta, Apple has enabled Wi-Fi Sync. Release notes explain this required the latest beta version of iTunes and Lion or OS X 10.6.8
From the release notes:
"You will see an option to enable wireless syncing when you connect your device to iTunes with the USB cable. It is recommended you perform your initial sync with a cable after restoring your device.
"Wireless syncing is triggered automatically when the device is connected to power and on the same network as the paired computer."
Can anyone say, Post PC?
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