Developer website: Gekko Software
GekkoTunes is an iTunes controller which floats globally over any application currently running. The controller displays the song title that is currently playing, and in a popupmenu on the window shows Artist and Album as well. It has support to skip tracks, and return to previous tracks, as well as play and pause. It supports a couple of window frames, to best suite you.
Version 2.0 has been completely re-written.
Mac OS X 10.0 or later