There's one or two on this list of dataflow languages I compiled some time ago that you don't have included: https://stackoverflow.com/questions/461796/dataflow-programm...
Specifically: SCADE, AudioMulch, [BLOK], Shake, Max/MSP and Epecco. There are also some programs with visual programming elements: Voreen, Blender and ANKHOR FlowSheet.
Links/screenshots in the stackoverflow answer.