SlingShot 2.0 adds support for synchronizing Playlists of music from iTunes. It works just like you might think: you Publish an iTunes Playlist from one computer, and then Subscribe on another. SlingShot will copy over any songs from the playlist that arent in the Subcribers iTunes Library, add them to its Library, and then recreate the Playlist on the Subscriber. Then it will check periodically (you tell it how often) — add a new song to the Playlist on the Publisher, and the Subscriber will do the same.