Reason surface control...
I downloaded Figure and am underwhelmed by it mostly because of lack of save, sound customisation and export features. Fun but frustrating. However, it gave me an idea considering that you are dabbling in the portable device spectrum that a set of "tools" or control surfaces for Reason would be unique and outstanding. Think iPad through midi/usb becoming a keyboard, a guitar but most desirable: a customisable control surface for parameters in Reason just like the control surface within the tweak tab in Figure only the size of the iPad's screen.
You would make me a very happy Reason user indeed!