The Noise application interface is very basic in terms of playing notes, no custom scales, does not use the full real estate of iPad. Not sure whether its a deliberate attempt to force people to buy Hardware.
I am thinking if I can play SWAM libraries in Noise App in Garageband and Geoshred it will be great. Geoshred is a great interface, I don't think anybody can beat it in this decade. with lots of scales built-in and customization of a number of rows and columns.
if Roli can support the above thing, it becomes a true mobile development platform.