After an unprecedented chorus of disapproval, I've looked into the whole Roland Accordion thing again, and I suppose the 'all in one box' thing is pretty amazing. Sure, in the past you could plug your MIDI accordion into a synth and some speakers. But now, you can busk on a street corner, playing your accordion, but sounding like the London Philharmonic. Or a brass band, which would certainly amuse the tourists. Or, using Wizoo's new Darbuka, you could reproduce the percussive sounds of the Middle East. (Although then you'd need a computer, so it wouldn't be busking so much).