I'm looking at buying an iPhone 3G S sometime next week, and I was wondering if the iPhone has the ability, like iTunes, to play music through my AirPort Express wirelessly when connected to the AirPort Express' network? To put it simply, I want to stream music from a iPhone to my AirPort Express then to a set of speakers. Is this possible? I have read about the iPhone working as a remote for iTunes on a computer(http://www.apple.com/itunes/remote/), but this is not what I'm after. Thanks in advance.