If current MIDI compatible 25-note piano-style-keyboards are rumored to work with RB3 via USB to MIDI cable-age, is it also possible to use the RB3 piano-keyboard-controllers as MIDI trigger devices for 3rd party software via the same USB to MIDI wiring on software running on PC/Mac/Linux? I'm curious. If the RB3 keyboard controllers are shipped equipped with MIDI IN/OUT ports, the bottleneck would surely rest on software drivers. And if that's the case, ... ... will there REALLY be a difference between a Wii, 360 and PS3 keyboard for PS3? I'm just thinking outloud. Any other speculators out there?