Whether it's OS X, BeOS or DeMuDi or ... is not so important to me as long as the UI and general usage of the OS is pretty straightforward and there is a good pro-level sequencer available to turn the handle.
The Analog Devices page has somewhere a programmers reference to Csound for the exact DSP's on our boards (I think), so just maybe CW programming is not so hard to push to Linux.
I guess that the hardcore programmers here will be thrilled to see, that the modules for DSP's and synthesis has not been finished yet in DeMuDi. Here's maybe a chance to pull the link between Pulsar and Linux !?
I for one chose Pulsar so that my lousy programming skills was not to hinder me

Cheers
Stubbe