Opening a great new iOS 5 feature to many more users, Apple has announced in their iOS 5 beta 4 documentation that iOS 5′s WiFi-sync functionality will work with Windows PCs. This is fantastic news for those with an iPad, iPhone, or iPod touch that use a Windows computer as their main machine.
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.”
iOS 5 WiFi-sync is a part of Apple’s greater “post-PC” initiative and “cutting the cord.” iOS 5 WiFi sync is either activated to synchronize new content when your iOS device is plugged in for charging, or when you click the WiFi sync button in the iOS settings application