I dunno...there's also the pad-controller desktop version, definitely smaller. But the full keyboard is only a 4 octave, which puts it in the same general form factor area as the DeepMind, DSI OB-6 or the Prologue-8...and with that, you also get the 4-octave ribbon (which can be used as a separate controller altogether) and the full poly-aftertouch. The pads on the desktop also have poly-aftertouch, but you lose that (quantized!) ribbon.