I was thinking along the lines of iPad and hybrid keyboard controls serving as the controls for any VST settings. It will be interesting to see how the likes of Yamaha, Korg and Roland cope with Apples little invention in a few years to come, we could see a change in market pressure. Seeing that iPad processors might start to be as sophisticated as dedicated keyboards like the Kronos or Phantom or Yamaha XF. Maybe it won't be long before a hybrid controller has ports for 2 iPad's too.