Posted Oct 16, 2007 0:48 UTC (Tue) by JoeBuck (subscriber, #2330)
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First Usenet reference I can find is from August 1990. So it wouldn't work as prior art. However, the discussion refers to an older window manager named vtwm.
Another influential window manager was
gwm, the "Emacs of window managers" (I think the first to provide extensibility via a Lisp interpreter). But it's also from 1989, and some of the early discussion talks about implementing ROOMS-like functionality, which unfortunately makes clear that it won't work as prior art.
Tvtwm
Posted Oct 17, 2007 0:01 UTC (Wed) by da4089 (subscriber, #1195)
[Link]
Tom LaStrange, the author of tvtwm, twm and swm, is still active in the industry (although no longer writing window managers). He was interviewed recently by LinuxPlanet, and has a web page
He would likely be able to answer any relevant questions ...