There are a great many worthy software packages that have died
because they didn't go Open Source (or did it too late, like
Netscape). I highlight a few important packages here that are in
need of going Open Source before it's too late.
This was getting down to the wire, but it looks like Schwartz has
pulled the bacon out of the fire.
The People Who Brought You FOSS Java
And Sun Said, Set My Java Free: The Open Source
OpenStep (nee NextStep) is the nifty Objective-C GUI library that
powers Cocoa applications on Mac OS X. Contrary to the name, it
isn't "Open" (the "Open" refers to the API spec which NeXT
developed with Sun). There is a valiant OSS effort http://www.gnustep.org/
working to implement OpenStep and some
of the Cocoa API, but it just isn't the same thing.
Andy Dent complains about Cocoa being closed