Can anyone recommend a list of MIDI control surfaces that feature 16 
pots/sliders that will work with OLPC? (Of course I'm talking about realtime 
Csound application.)

Are there any MIDI devices especially designed for the OLPC, or likely to be 
available or encouraged (normative) for use?

I imagine that features such as low cost, rugged construction, wide 
availability would be crucial. And I'm wondering if an instrumental keyboard 
(in this case, plus pots/sliders) would be the preferred "format"?

Art Hunkins