i don't know anything about apple devices, but my impression was that they assumed you had everything else apple. if i have music on a samba network mount from a linux server, will apple tv play it, for example? also is it upnp - can i push music to it from windows and linux devices? airplay is something else, isn't it?

maybe this apple tv thing is what i have been looking for. but i'm having trouble answering the above from their site.