[cmccabe]

Let's check wikipedia.

"Proprietary software or closed source software is computer software licensed under exclusive legal right of the copyright holder.[1] The licensee is given the right to use the software under certain conditions, while restricted from other uses, such as modification, further distribution, or reverse engineering"

Muddying the waters by referring to open source software as proprietary software does not help. And I am sure the folks at Mozilla, being open source advocates themselves, would tell you the same thing.

Reminds me of an ex-boss (from a long time ago) who referred to all open source software as "freeware." Hey guys, the 1990s called, they want their bad hacker movies and confusion about the software business back.

[bzbarsky]

You're confusing "proprietary software" and "proprietary technology". They're not the same thing.

There are lots of examples of open-source software implementing proprietary technologies of various sorts (example: x264). There are lots of examples of proprietary software implementing open technologies of various sorts (example: Opera).

I'm not talking about the licensing model for the NaCl source code; I'm talking about the openness or not of the entire NaCl technology stack.

As far as folks at Mozilla go, I think they might point you at http://www.readwriteweb.com/archives/how_to_spot_openwashing...