Sorry no source code will be posted before the Mediastation will not ship.
Thirdparty developers need documentation when accessing code and programming interfaces so putting online work in progress stuff does not make much sense.

BTW: don't beat anyone if the dates slip a bit
As said better finished stuff a bit later than defective stuff now. (on SZ we see often complaints about unfinished/defective firmware of keyboards).

cheers,
Benno
http://www.linuxsampler.org