Collaborative Playlists for Digital Signage

One more piece to add to your digital signage "mashup" brought to you by SongVote and as reported by Mashable here.
I can imagine a venue - a work place, campus and just about any place that people gather that plays music either in the foreground as the main attraction or in the background as ambient entertainment. Now, let the people who are in the venue see what's on, vote for the next song in the queue or add a song to be voted upon, all from your mobile phone, all displayed on your signpost - your digital signage!