It would be extremely useful to have an on the go playlist module. A module that shows what songs are in the current playlist that is loaded and allows quick and easy editing of the playlist. Such as clearing of songs / playlist or saving the playlist without the user having to switch to the playlist page.

Basically the contents of "On the go" playlist in nice compact side bar module. It would be so much more convenient to be able to have this information on the same page then have to switch to the playlist page anytime a user wants to double check to see if they have a certain song added, or to delete a song, or to clear the playlist.

yes...
well this is basically what we already discussed on another thread (you and I ) talking about javascript "nice" playlists, using jwplayer js api feedback and such. this could be used to do what you ask for, too.

this will come... some time...

Great to hear! Looks like your already one step ahead of me