Last night, Apple released the second beta revision of the iOS5 firmware. This new version of the firmware adds the ability to wirelessly sync with your iTunes library and lets you restore from a backup on iCloud among other new features.

In iOS 5.0 beta 2, wireless syncing is now available for the Mac. It requires iTunes 10.5 beta 2 and 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). Be sure your device is plugged into a power source when performing Wireless syncs.

Some other notable changes are the new bootlogo animation that has been added and also Facetime has been disabled in this release. If you are a developer who wishes to install beta 2 and you would like to jailbreak it, make sure to check out our tethered iOS5 Beta 2 Jailbreak tutorial. Please note that you will want to point redsn0w to the beta 1 firmware for it to work.

Another noteworthy mention is that Apple has blocked Gevey SIM unlock in iOS5 Beta 2.