I don't think anybody would ever say a family with three daughters was "not fully pregnant." You would say some members of the family are pregnant and others aren't.
And anyway, this wasn't the sense in which Preston-Warner used the phrase — he did describe what he meant, and it was not open-source software. It was, as chimeracoder said, similar to Microsoft's "shared source" program.
And anyway, this wasn't the sense in which Preston-Warner used the phrase — he did describe what he meant, and it was not open-source software. It was, as chimeracoder said, similar to Microsoft's "shared source" program.