I originally posted this in the Traktor DJ forum, but wonder whether it should be here... When using the S2 or S4 with the app the vast majority of interaction moves from the touchscreen to the controller, with the iPad (iPhone) becoming more of an information source, like a laptop screen. As a consequence it would be helpful if the UI could change to a portrait layout so the waveforms represent the left/right config of the controller. I understand with the title bar moving to the top and track info aligning horizontally the waveform size would become slightly shorter but I could live with this. The virtual cross fader could be removed which would allow the FX/EQ/Loop/Play buttons to be made smaller. Just a thought!