Among the unannounced features of Apple TV Software 2.1 is the ability to save movies to a Wish List for purchase/rental at a later date. Each individual movie listing page now has a Wish List button to the right of the trailer, purchase, and rental buttons.
Once a user has added a movie to his/her Wish List, a “Wish List” menu item appears between the “Rented Movies” and “Top Movies” section on the main Apple TV menu. Commenters have also noted that a thumbnail of the album artwork now appears when browsing music albums, and the duration of each track is shown once the album is selected.
Finally, Apple TV Software 2.1 now supports dynamically updated Smart Playlists, which are now updated by the set top box without the need to sync with iTunes, as was required by previous versions of the software..