I would have no problem with the keyboard running Windows (XP). It is very stable. My computer at home runs for weeks without powerdown, with no hangups or malfunctions, and that's with kids playing internet games and installing all kinds of programs. In the dedicated PC (or windows-based keyboard), I would have tight control over what gets loaded, and I am convinced it would not cause problems in performance.

That Ikarus beast looks pretty cool too, weighing 21 kg (45 lbs) with 76 keys, sliders, buttons, and a screen. Did I understand correctly that it has an on-board 30W x 2 amp and speakers?

The only concern is price - at $6500 or more it would be too expensive for me (and probably most others here).

Regards,
Alex