Apple Releases iTunes 10.5 Beta 3
Following the release of iOS 5 beta 3 earlier today, Apple also updated to version 10.5 beta 3. Needless to say that this update is for developers only, although it seems stable enough for anyone to use, assuming you know where to get it.
If you just downloaded iOS 5 beta 3, you will need to install iTunes 10.5 beta 3 in order to install the latest iOS version on your device. From what I see, iTunes 10.5 beta 3 is safe for jailbreakers so there is nothing to worry on that side…
You can 10.5 beta 3 from your developer account.