The SK880 IOP was shown at NAMM in January. This was a project that was in the works for a year. I suspect that you already own an SK880, in this case just an upgrade to your board would make the most sence. Your local GEM dealer would be able to have your instrument upgraded, which inculdes a Hard drive swap, some re-wiring, and a new E-Prom.
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Paul Davis
Generalmusic
Generalmusic.US