The clever people at Neyrinck have just released a 32 fader version of V-Console, that can be split across two devices. The second device can also switch between faders 17-32 and V-panner. You can even run different OS devices in tandem.
Neyrinck's determination to be platform agnostic really puts them ahead of the pack, and the chance of having that much control and visual feedback is not one to be missed.
Keep your eyes peeled for a review soon!