Alright, yes, I actually do know how iTunes wi-fi sync works. I know you check the "Sync this iPhone over wi-fi" box in iTunes and then your iPhone will appear in iTunes when connected to a power source and the same wi-fi network. My problem is it working when it's not made to. My iPhone 4 would connect without being connected to power and I thought one of my jailbreak packages made this happen or caused it to glitch out. Then it still did it when I installed iOS 6 and that made me think some setting file carried over from the jailbreak in my backup. BUT now my iPhone 5 is doing it, but I set it up as new, so I have no idea why. Don't get me wrong, I'm not complaining, I'm just curious. For me this is awesome since previously it would hardly appear when even connected to a power source.