I'm reading many posts from prior to iPhone 4s and IOS 5 release about people sharing their iTunes library with their iPhone while on the same Wi-Fi. Just to be clear, I'm not talking about streaming movies over 3G, just while I am home on my Wi-Fi. Is this possible with Home Sharing and not buying an additional app? I have Home Sharing turned on in iTunes because I have Apple TV. And I have it turned on in my iPhone under Settings and Video (used to be iPod prior to IOS 5). What am I missing here?