Apple TV, amongst other things, now mixes your music!
If you haven't heard of Apple TV, it's their answer to the Windows Media Center -- just plug it into an HD TV, connect to a Mac or PC running iTunes via your local network... and blam! All of those lovely iTunes-bought movies and TV episodes can now be easily streamed to your big screen.
The new functionality being touted with version 3.0 of Apple TV are their two musical technologies: iTunes LP and Genius Mixes. iTunes LP is like some kind of 'immersive experience' -- not only do you listen to your favourite albums through your living room sound system (which is usually the best in the house!), but you also get 'extra footage' displayed on the TV! Presumably this will be liner notes from the album, studio photos and video footage from live concerts.
The update also brings the other new, neat feature of iTunes -- Genius Mixes -- to the Apple TV. Using some kind of match-making algorithm (a la Pandora?), Apple will apparently create smooth-sounding playlists automatically.
Of course, available to you at any time with the Apple TV there's the usual fare of streaming Internet radio and YouTube (though I can't imagine your living room speakers are going to be very kind to YouTube videos...) Also worth mention is the ability to easily get your photos from your hard disk (or Flickr) over to your big TV.
It all comes at a price though -- $230, for a box with a small hard disk and a network adaptor.
At least it's a pretty box.