Tried checking for updates today, but still showing the message that my zune is up to date. I'll try again later this afternoon.
UPDATE: Gizmodo says that the update should go live somewhere between 10PM PDT and 4AM PDT tomorrow.
- TV show downloads on Zune Marketplace
- Zune card integration! *cool!
- Gapless playback
- improved syncing controls
- meta data editing,
- auto playlists
- and other tweaks have been included.