I was at CEDIA and got to see this for myself. Yes, you get metadata like when a song is playing you can see artist/album/song info. Plus, you can browse the music library as well and select the song you want to play as you navigate through the interface.

The one limitation that I saw was that you do not get the actual album art on the screen. The guy there told me something about how sending pictures through Z-wave would have been really slow. It makes sense to me since Z-wave has such a low bandwidth.

It was actually cool to see this working on the lil' ol' NevoQ50 as well.