The Moog engineers set up a 5 voice Phatty in the Moog Sound Lab. Watch them and Eric Svalgard, Director of the School of Rock, work the 10 oscillators, 5 LFOs and 5 Voltage Controlled Low Pass Filters all under the control of one Little Phatty keyboard.
http://www.moogmusic.com/littlephatty/?
Video on how to set up your own polyphonic Slim Phatty chain here:
http://www.youtube.com/watch?v=alg7TOwhpCw