I wasn't aware there was a tweak for it but when I was talking about it, I was referring to stock iOS (as that was the topic we were on when talking about syncing music using iTunes)
Yes I'm aware of the topic lol. I was simply stating that there is/was a workaround. It was awesome at some point in time. Can't say for sure since I'm I don't use it any more. But it was awesome. It let you sync your device with multiple iTunes libraries.