from Gizmodo:

(Tanks GG for the pointer…)

Well, now with the playlist ability from iTunes and other do-it-yourself mac-a-licious programs, prompter jockeys better hide this news from their clients. Yup, you can use OSX and do it youself, providing you with the lyrics to your own songs and others! Heck, they could change the setlist on the fly and everybody’s screens could be instantly updated! Better get those router skills (uh, not the network one, the wood one) tuned up…

Front Row for Musicians: Remote Control Mac Music Sets.