Apple has enabled WiFi sync for Windows in the newly released iOS 5 beta 4 and iTunes 10.5 beta 4 combo. If you’re enrolled in the Apple developer program, download the latest betas and enjoy your wireless freedom. It’s recommended that users perform the initial sync over USB for speed.
- In iOS 5 beta 4, wireless syncing is now available on Windows as well as the Mac (requires OS X 10.6.8 or Lion)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. Or, you can manually trigger a sync from iTunes or from Settings -> General -> iTunes Sync (same network as paired computer required).
- If you find issues with apps, media and/or photos synced to your device, you can reset then resync. From Settings -> General -> Reset, choose Erase all Content and Settings. Then reconnect to iTunes and sync again.
The full iOS 5 beta 4 changelog can be found here.