Remember that the Workplace Shell on OS/2 was supposed to be the first piece of IBM's grand vision of having the WPS everywhere (even DOS, though that was dropped as it was too memory intensive, IIRC.). There was a [link|http://hobbes.nmsu.edu/pub/windows/wpsfw151.zip|WPS for Win16] that was pretty neat (as a concept, but limited), but the WPS never went beyond OS/2 and Win16. At least not publicly.
I have to think that IBM has a WPS for Unix in a drawer somewhere, or had someone write it under contract and that vendor has it in a drawer somewhere. The fact that there hasn't been an Open Source work-alike in all these many years tells me that it's not a simple problem.
:-(
Is anyone working on it? I don't see anything at [link|http://www.netlabs.org|http://www.netlabs.org]
Thanks.
Cheers,
Scott.