Not like you would need to anyway. I don't even own the console, but if you aren't ripping the music on a PC and streaming that to the Xbox you're doing it wrong.
Last I heard though neither manufacturer wanted you to do that. I heard that Sony was going to patch in DLNA support later, so I would expect MS to follow suit. --- Console war in a nutshell: http://imgur.com/xA6GJZ9.png