Usine from sensomusic.com have a native Open Sound Control (Osc) feature , so it can receive infos from an I-Pod touch ( for example ) . here a quick first demo , here , only the i-pod send infos , but Usine can also send to the i-pod for a visual feedback...
it's a simple pads X 16 sending on 2 sequencers
i can choose which one via the ipod , record /stop/clear
adding one effect ( delay ) and a filter via a XY pad ( with record function )
I've also a simple 2 faders for volume and one for pan