I think this is a good direction to go for both the consumers & manufactures. Apps can add features that are not possible to add on the keyboard (hardware). One good example i'm waiting for are virtual sliders to control styles or smf parts similar to Audya, E80/G70 of PA3X.
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Jim

SD90,Korg I3, KMA Liverpool,TC Helicon Play Electric, Fender Sonoran Guitar, vArranger, Bose S1 Pros, Bose L1 Compact, Aiwa Exos-9