As many have you seen, the 2nd beta of iTunes 10.5 mentions that the wifi sync feature is only available for those using Snow Leopard. The first beta of iTunes 10.5 does work on Leopard, so are we screwed for the second beta? (and hereafter?) I don't see why the OS has anything to do with it - iTunes could've simply been made to implement this feature into any Mac using the latest version. PPC support hasn't been dropped for the latest versions of iTunes yet, so what gives? I had my hopes up that iOS 5 would sync well with my PowerMac once it was officially out in the fall. Now, not so much.